NoLagg error log

[13:12:04] [Server thread/WARN]: Failed to handle packet for /206.45.69.8:61114
java.lang.IllegalStateException: Unknown org.bukkit.craftbukkit.v1_7_R1.chunkio.QueuedChunk@a11496e8
	at org.bukkit.craftbukkit.v1_7_R1.util.AsynchronousExecutor.drop(AsynchronousExecutor.java:266) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at org.bukkit.craftbukkit.v1_7_R1.chunkio.ChunkIOExecutor.dropQueuedChunkLoad(ChunkIOExecutor.java:25) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.PlayerChunk.b(PlayerChunk.java:70) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.PlayerChunkMap.movePlayer(PlayerChunkMap.java:232) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at com.bergerkiller.bukkit.common.bases.PlayerChunkMapBase.movePlayer(PlayerChunkMapBase.java:79) ~[?:?]
	at com.bergerkiller.bukkit.nolagg.chunks.antiloader.DummyPlayerManager.movePlayer(DummyPlayerManager.java:66) ~[?:?]
	at com.bergerkiller.bukkit.common.bases.PlayerChunkMapBase.movePlayer(PlayerChunkMapBase.java:61) ~[?:?]
	at net.minecraft.server.v1_7_R1.PlayerList.d(PlayerList.java:271) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:416) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.PacketPlayInFlying.a(SourceFile:137) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.PacketPlayInPosition.handle(SourceFile:63) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:146) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.ServerConnection.c(SourceFile:134) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:655) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:250) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:545) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:457) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
[13:12:04] [Server thread/INFO]: limeisfine lost connection: Internal server error
[13:12:04] [Server thread/ERROR]: Encountered an unexpected exception
java.lang.IllegalStateException: Unknown org.bukkit.craftbukkit.v1_7_R1.chunkio.QueuedChunk@a11496e8
	at org.bukkit.craftbukkit.v1_7_R1.util.AsynchronousExecutor.drop(AsynchronousExecutor.java:266) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at org.bukkit.craftbukkit.v1_7_R1.chunkio.ChunkIOExecutor.dropQueuedChunkLoad(ChunkIOExecutor.java:25) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.PlayerChunk.b(PlayerChunk.java:70) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.PlayerChunkMap.removePlayer(PlayerChunkMap.java:191) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at com.bergerkiller.bukkit.common.bases.PlayerChunkMapBase.removePlayer(PlayerChunkMapBase.java:97) ~[?:?]
	at com.bergerkiller.bukkit.common.bases.PlayerChunkMapBase.removePlayer(PlayerChunkMapBase.java:70) ~[?:?]
	at net.minecraft.server.v1_7_R1.PlayerList.disconnect(PlayerList.java:293) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:702) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.ServerConnection.c(SourceFile:128) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:655) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:250) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:545) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:457) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
	at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-2-g85f5776-b3023jnks]
[13:12:04] [Server thread/ERROR]: This crash report has been saved to: C:\Users\Me\Desktop\Server\.\crash-reports\crash-2014-02-24_13.12.04-server.txt
[13:12:22] [Thread-14/WARN]: [Server] The main thread failed to respond after 10 seconds
[13:12:22] [Thread-14/WARN]: [Server] What follows is the stack trace of the main thread
[13:12:22] [Thread-14/WARN]: [Server]     at java.lang.Thread.sleep(Native Method)
[13:12:22] [Thread-14/WARN]: [Server]     at net.minecraft.server.v1_7_R1.DedicatedServer.a(DedicatedServer.java:231)
[13:12:22] [Thread-14/WARN]: [Server]     at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:485)
[13:12:22] [Thread-14/WARN]: [Server]     at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617)
[13:12:34] [Thread-14/WARN]: [Server] The main thread is still stuck, current loop line is:
[13:12:34] [Thread-14/WARN]: [Server]     at net.minecraft.server.v1_7_R1.DedicatedServer.a(DedicatedServer.java:231)