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  1. [17:53:11] [Server thread/INFO]: TimmiArtz[/93.167.216.98:64727] logged in with entity id 102083 at ([world]-239.5, 68.0, 246.5)
  2. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  3. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  4. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  5. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  6. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  7. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  8. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  9. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  10. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  11. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  12. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  13. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  14. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  15. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  16. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  17. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  18. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  19. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  20. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  21. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  22. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  23. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  24. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  25. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  26. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  27. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  28. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  29. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  30. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  31. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  32. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  33. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  34. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  35. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  36. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  37. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  38. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  39. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  40. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  41. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  42. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  43. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  44. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  45. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  46. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  47. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  48. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  49. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  50. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  51. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  52. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  53. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  54. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  55. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  56. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  57. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  58. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  59. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  60. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  61. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  62. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  63. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  64. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  65. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  66. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  67. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  68. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  69. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  70. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  71. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  72. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  73. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  74. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  75. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  76. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  77. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  78. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  79. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  80. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  81. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  82. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  83. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  84. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  85. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  86. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  87. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  88. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  89. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  90. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  91. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  92. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  93. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  94. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  95. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  96. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  97. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  98. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  99. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  100. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  101. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  102. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  103. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  104. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  105. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  106. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  107. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  108. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  109. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  110. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  111. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  112. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  113. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  114. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  115. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  116. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  117. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  118. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  119. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  120. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  121. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  122. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  123. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  124. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  125. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  126. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  127. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  128. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  129. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  130. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  131. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  132. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  133. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  134. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  135. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  136. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  137. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  138. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  139. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  140. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  141. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  142. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  143. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  144. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  145. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  146. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  147. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  148. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  149. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  150. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  151. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  152. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  153. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  154. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  155. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  156. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  157. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  158. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  159. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  160. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  161. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  162. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  163. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  164. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  165. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  166. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  167. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  168. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  169. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  170. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  171. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  172. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  173. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  174. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  175. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  176. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  177. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  178. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  179. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  180. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  181. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  182. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  183. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  184. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  185. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  186. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  187. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  188. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  189. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  190. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  191. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  192. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  193. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  194. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  195. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  196. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  197. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  198. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  199. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  200. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  201. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  202. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  203. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  204. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  205. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  206. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  207. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  208. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  209. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  210. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  211. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  212. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  213. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  214. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  215. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  216. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  217. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  218. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  219. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  220. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  221. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  222. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  223. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  224. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  225. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  226. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  227. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  228. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  229. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  230. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  231. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  232. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  233. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  234. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  235. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  236. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  237. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  238. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  239. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  240. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  241. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  242. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  243. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  244. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  245. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  246. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  247. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  248. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  249. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  250. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  251. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  252. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  253. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  254. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  255. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  256. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  257. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  258. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  259. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  260. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  261. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  262. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  263. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  264. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  265. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  266. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  267. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  268. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  269. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  270. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  271. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  272. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  273. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  274. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  275. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  276. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  277. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  278. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  279. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  280. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  281. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  282. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  283. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  284. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  285. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  286. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  287. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  288. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  289. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  290. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  291. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  292. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  293. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  294. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  295. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  296. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  297. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  298. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  299. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  300. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  301. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  302. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  303. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  304. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  305. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  306. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  307. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  308. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  309. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  310. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  311. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  312. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  313. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  314. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  315. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  316. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  317. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  318. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  319. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  320. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  321. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  322. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  323. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  324. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  325. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  326. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  327. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  328. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  329. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  330. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  331. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  332. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  333. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  334. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  335. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  336. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  337. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  338. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  339. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  340. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  341. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  342. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  343. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  344. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  345. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  346. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  347. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  348. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  349. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  350. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  351. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  352. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  353. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  354. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  355. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  356. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  357. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  358. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  359. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  360. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  361. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  362. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  363. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  364. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  365. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  366. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  367. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  368. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  369. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  370. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  371. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  372. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  373. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  374. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  375. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  376. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  377. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  378. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  379. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  380. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  381. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  382. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  383. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  384. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  385. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  386. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  387. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  388. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  389. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  390. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  391. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  392. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  393. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  394. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  395. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  396. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  397. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  398. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  399. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  400. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  401. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  402. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  403. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  404. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  405. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  406. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  407. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  408. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  409. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  410. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  411. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  412. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  413. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  414. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  415. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  416. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  417. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  418. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  419. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  420. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  421. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  422. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  423. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  424. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  425. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  426. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  427. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  428. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  429. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  430. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  431. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  432. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  433. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  434. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  435. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  436. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  437. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  438. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  439. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  440. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  441. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  442. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  443. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  444. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  445. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  446. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  447. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  448. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  449. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  450. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  451. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  452. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  453. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  454. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  455. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  456. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  457. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  458. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  459. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  460. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  461. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  462. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  463. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:34f82e
  464. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  465. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  466. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  467. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  468. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  469. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  470. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  471. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  472. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  473. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  474. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  475. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  476. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  477. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  478. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  479. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  480. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  481. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  482. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  483. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  484. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  485. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  486. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  487. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  488. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  489. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  490. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  491. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  492. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  493. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  494. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  495. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  496. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  497. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  498. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  499. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  500. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  501. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  502. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  503. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  504. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  505. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  506. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  507. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  508. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  509. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  510. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  511. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  512. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  513. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  514. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  515. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  516. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  517. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  518. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  519. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  520. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  521. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  522. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  523. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  524. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  525. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  526. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  527. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  528. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  529. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  530. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  531. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  532. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  533. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  534. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  535. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  536. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  537. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  538. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  539. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  540. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  541. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  542. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  543. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  544. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  545. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  546. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  547. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  548. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  549. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  550. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  551. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  552. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  553. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  554. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  555. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  556. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  557. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  558. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  559. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  560. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  561. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  562. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  563. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  564. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  565. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  566. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  567. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  568. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  569. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  570. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  571. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  572. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  573. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  574. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  575. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  576. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  577. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  578. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  579. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  580. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  581. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  582. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  583. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  584. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  585. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  586. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  587. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  588. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  589. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  590. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  591. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  592. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  593. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  594. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  595. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  596. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  597. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  598. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  599. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  600. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  601. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  602. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  603. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  604. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  605. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  606. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  607. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  608. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  609. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  610. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  611. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  612. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  613. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  614. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  615. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  616. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  617. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  618. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  619. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  620. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  621. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  622. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  623. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  624. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  625. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  626. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  627. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  628. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  629. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  630. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  631. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  632. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  633. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  634. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  635. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  636. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  637. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  638. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  639. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  640. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  641. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  642. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  643. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  644. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  645. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  646. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  647. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  648. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  649. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  650. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  651. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  652. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  653. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  654. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  655. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  656. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  657. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  658. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  659. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  660. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  661. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  662. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  663. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  664. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  665. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  666. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  667. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  668. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  669. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  670. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  671. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  672. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  673. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  674. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  675. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  676. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  677. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  678. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  679. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  680. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  681. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  682. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  683. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  684. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  685. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  686. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  687. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  688. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  689. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  690. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  691. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  692. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  693. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  694. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  695. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  696. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  697. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  698. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  699. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  700. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  701. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  702. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  703. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  704. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  705. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  706. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  707. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  708. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  709. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  710. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  711. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  712. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  713. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  714. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  715. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  716. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  717. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  718. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  719. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  720. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  721. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  722. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  723. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  724. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  725. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  726. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  727. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  728. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  729. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  730. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  731. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  732. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  733. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  734. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  735. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  736. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  737. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  738. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  739. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  740. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  741. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  742. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  743. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  744. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  745. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  746. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  747. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  748. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  749. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  750. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  751. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  752. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  753. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  754. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  755. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  756. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  757. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  758. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  759. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  760. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  761. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  762. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  763. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  764. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  765. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  766. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  767. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  768. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  769. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  770. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  771. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  772. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  773. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  774. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  775. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  776. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  777. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  778. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  779. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  780. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  781. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  782. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  783. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  784. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  785. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  786. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  787. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  788. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  789. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  790. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  791. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  792. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  793. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  794. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  795. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  796. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  797. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  798. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  799. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  800. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  801. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  802. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  803. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  804. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  805. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  806. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  807. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  808. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  809. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  810. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  811. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  812. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  813. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  814. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  815. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  816. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  817. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  818. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  819. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  820. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  821. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  822. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  823. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  824. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  825. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  826. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  827. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  828. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  829. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  830. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  831. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  832. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  833. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  834. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  835. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  836. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  837. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  838. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  839. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  840. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  841. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  842. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  843. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  844. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  845. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  846. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkPro57) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  847. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  848. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  849. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  850. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  851. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  852. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  853. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  854. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  855. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  856. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  857. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  858. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  859. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  860. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  861. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  862. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  863. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  864. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  865. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  866. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  867. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  868. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  869. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  870. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  871. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  872. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  873. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  874. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  875. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  876. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  877. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  878. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  879. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  880. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  881. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  882. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  883. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  884. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  885. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  886. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  887. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  888. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  889. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  890. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  891. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  892. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  893. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  894. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  895. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  896. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  897. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  898. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  899. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  900. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  901. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  902. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  903. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  904. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  905. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  906. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  907. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  908. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  909. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  910. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  911. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  912. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  913. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  914. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  915. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  916. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  917. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  918. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  919. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  920. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  921. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  922. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  923. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  924. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  925. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  926. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  927. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  928. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  929. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  930. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  931. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  932. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  933. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  934. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  935. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  936. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  937. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  938. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  939. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  940. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  941. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  942. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  943. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  944. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  945. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  946. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  947. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  948. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  949. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  950. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  951. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  952. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  953. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  954. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  955. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  956. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  957. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  958. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  959. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  960. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  961. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  962. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  963. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  964. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  965. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  966. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  967. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  968. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  969. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  970. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  971. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  972. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  973. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  974. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  975. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  976. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  977. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  978. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  979. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  980. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  981. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  982. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  983. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  984. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  985. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  986. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  987. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  988. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  989. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  990. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  991. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  992. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  993. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  994. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  995. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  996. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  997. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  998. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  999. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1000. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1001. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1002. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1003. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1004. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1005. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1006. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1007. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1008. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1009. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1010. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1011. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1012. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1013. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1014. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1015. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1016. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1017. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1018. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1019. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1020. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1021. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1022. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1023. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1024. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1025. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1026. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1027. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1028. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1029. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1030. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1031. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1032. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1033. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1034. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1035. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1036. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1037. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1038. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1039. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1040. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1041. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1042. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1043. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1044. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1045. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1046. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1047. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1048. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1049. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1050. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1051. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1052. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1053. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1054. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1055. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1056. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1057. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1058. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1059. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1060. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1061. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1062. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1063. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1064. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1065. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1066. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1067. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1068. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1069. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1070. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1071. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1072. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1073. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1074. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1075. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1076. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1077. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1078. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1079. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1080. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1081. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1082. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1083. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1084. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1085. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1086. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1087. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1088. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1089. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1090. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1091. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1092. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1093. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1094. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1095. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1096. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1097. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1098. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1099. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1100. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1101. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1102. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1103. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1104. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1105. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1106. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1107. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1108. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1109. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1110. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1111. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1112. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1113. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1114. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1115. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1116. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1117. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1118. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1119. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1120. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1121. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1122. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1123. at net.minecraft.server.v1_8_R3.MineviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1124. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1125. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1126. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1127. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1128. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1129. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1130. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1131. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1132. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1133. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1134. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1135. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1136. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1137. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1138. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1139. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1140. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1141. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1142. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1143. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1144. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1145. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1146. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1147. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1148. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1149. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1150. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1151. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1152. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1153. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1154. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1155. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1156. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1157. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1158. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1159. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1160. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1161. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1162. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1163. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1164. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1165. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1166. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1167. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1168. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1169. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1170. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1171. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1172. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1173. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1174. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1175. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1176. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1177. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1178. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1179. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1180. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1181. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1182. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1183. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1184. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1185. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1186. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1187. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1188. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1189. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1190. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1191. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1192. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1193. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1194. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1195. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1196. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1197. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1198. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1199. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1200. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1201. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1202. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1203. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1204. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1205. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1206. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1207. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1208. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1209. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1210. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1211. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1212. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1213. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1214. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1215. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1216. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1217. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1218. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1219. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1220. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1221. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1222. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1223. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1224. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1225. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1226. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1227. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1228. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1229. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1230. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1231. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1232. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1233. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1234. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1235. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1236. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1237. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1238. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1239. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1240. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1241. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1242. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1243. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1244. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1245. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1246. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1247. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1248. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1249. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1250. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1251. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1252. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1253. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1254. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1255. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1256. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1257. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1258. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1259. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1260. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1261. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1262. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1263. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1264. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1265. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1266. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1267. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1268. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1269. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1270. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1271. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1272. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1273. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1274. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1275. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1276. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1277. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1278. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1279. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1280. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1281. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1282. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1283. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1284. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1285. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1286. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1287. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1288. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1289. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1290. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1291. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1292. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1293. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1294. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1295. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1296. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1297. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1298. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1299. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1300. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1301. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1302. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1303. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1304. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1305. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1306. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1307. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1308. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1309. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1310. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1311. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1312. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1313. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1314. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1315. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1316. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1317. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1318. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1319. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1320. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1321. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1322. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1323. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1324. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1325. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1326. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1327. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1328. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1329. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1330. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1331. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1332. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1333. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1334. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1335. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1336. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1337. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1338. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1339. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1340. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1341. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1342. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1343. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1344. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1345. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1346. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1347. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1348. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1349. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1350. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1351. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1352. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1353. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1354. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1355. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1356. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1357. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1358. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1359. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1360. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1361. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1362. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1363. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1364. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1365. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1366. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1367. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1368. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1369. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1370. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1371. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1372. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1373. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1374. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1375. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1376. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1377. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1378. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1379. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1380. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1381. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1382. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1383. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1384. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1385. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1386. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1387. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1388. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1389. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1390. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1391. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1392. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1393. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1394. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1395. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1396. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1397. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1398. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1399. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1400. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1401. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1402. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1403. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1404. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1405. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1406. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1407. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1408. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1409. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1410. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1411. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1412. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1413. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1414. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1415. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1416. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1417. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1418. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1419. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1420. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1421. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1422. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1423. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1424. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1425. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1426. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1427. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1428. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1429. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1430. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1431. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1432. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1433. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1434. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1435. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1436. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1437. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1438. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1439. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1440. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1441. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1442. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1443. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1444. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1445. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1446. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1447. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1448. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1449. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1450. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1451. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1452. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1453. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1454. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1455. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1456. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1457. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1458. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1459. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1460. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1461. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1462. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1463. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1464. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1465. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1466. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1467. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1468. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1469. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1470. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1471. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1472. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1473. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1474. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1475. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1476. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1477. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1478. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1479. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1480. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1481. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1482. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1483. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1484. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1485. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1486. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1487. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1488. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1489. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1490. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1491. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1492. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1493. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1494. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1495. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1496. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1497. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1498. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1499. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1500. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1501. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1502. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1503. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1504. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1505. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1506. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1507. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1508. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1509. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1510. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1511. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1512. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1513. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1514. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1515. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1516. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1517. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1518. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1519. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1520. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1521. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1522. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1523. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1524. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1525. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1526. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1527. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1528. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1529. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1530. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1531. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1532. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1533. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1534. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1535. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1536. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1537. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1538. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1539. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1540. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1541. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1542. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1543. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1544. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1545. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1546. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1547. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1548. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1549. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1550. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1551. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1552. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1553. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1554. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1555. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1556. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1557. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1558. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1559. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1560. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1561. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1562. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1563. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1564. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1565. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1566. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1567. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1568. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1569. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1570. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1571. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1572. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1573. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1574. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1575. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1576. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1577. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1578. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1579. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1580. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1581. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1582. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1583. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1584. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1585. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1586. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1587. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1588. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1589. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1590. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1591. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1592. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1593. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1594. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1595. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1596. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1597. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1598. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1599. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1600. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check session lock for world located at ./world, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
  1601. at net.minecraft.server.v1_8_R3.WorldNBTStorage.checkSession(WorldNBTStorage.java:79) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1602. at net.minecraft.server.v1_8_R3.World.checkSession(World.java:2824) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1603. at net.minecraft.server.v1_8_R3.ChunkRegionLoader.a(ChunkRegionLoader.java:120) ~[spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1604. at net.minecraft.server.v1_8_R3.ChunkProviderServer.saveChunk(ChunkProviderServer.java:251) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1605. at net.minecraft.server.v1_8_R3.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:357) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1606. at net.minecraft.server.v1_8_R3.WorldServer.doTick(WorldServer.java:234) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1607. at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:770) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1608. at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1609. at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1610. at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot_server.jar:git-Spigot-5f38d38-18fbb24]
  1611. at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
  1612. [17:53:11] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
  1613. net.minecraft.server.v1_8_R3.ExceptionWorldConflict: Failed to check sess
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