---- Minecraft Crash Report ----
// Oh - I know what I did wrong!

Time: 5/13/16 2:01 PM
Description: Exception ticking world

java.util.ConcurrentModificationException
	at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
	at java.util.ArrayList$Itr.next(ArrayList.java:851)
	at net.minecraft.server.v1_9_R1.World.a(World.java:2539)
	at net.minecraft.server.v1_9_R1.SpawnerCreature.a(SpawnerCreature.java:120)
	at net.minecraft.server.v1_9_R1.WorldServer.doTick(WorldServer.java:226)
	at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:776)
	at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400)
	at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660)
	at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559)
	at java.lang.Thread.run(Thread.java:745)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
	at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
	at java.util.ArrayList$Itr.next(ArrayList.java:851)
	at net.minecraft.server.v1_9_R1.World.a(World.java:2539)
	at net.minecraft.server.v1_9_R1.SpawnerCreature.a(SpawnerCreature.java:120)
	at net.minecraft.server.v1_9_R1.WorldServer.doTick(WorldServer.java:226)

-- Affected level --
Details:
	Level name: servername
	All players: 24 total; [EntityPlayer['marcelohcortez'/896769, l='servername', x=-4975.80, y=123.71, z=4789.50](marcelohcortez at -4975.800000000011,123.7125,4789.5), EntityPlayer['parakeet54'/961707, l='servername', x=8113.30, y=46.00, z=-1934.08](parakeet54 at 8113.2977063511835,46.0,-1934.076163264179), EntityPlayer['Galactic_Loki'/1274278, l='servername', x=8089.55, y=74.41, z=-1914.37](Galactic_Loki at 8089.545293007395,74.40508312362576,-1914.371484551581), EntityPlayer['xAngelMinatox'/592059, l='servername', x=-14855.78, y=69.00, z=-3371.69](xAngelMinatox at -14855.778088392544,69.0,-3371.6853406000055), EntityPlayer['petermirkes93'/1484474, l='servername', x=11808.52, y=75.00, z=5004.79](petermirkes93 at 11808.524438257486,75.0,5004.785981005052), EntityPlayer['Bob_Whyland'/1491820, l='servername', x=-7854.67, y=78.00, z=4761.93](Bob_Whyland at -7854.671711778484,78.0,4761.931669829009), EntityPlayer['thechosley'/1360439, l='servername', x=-14903.36, y=80.00, z=-3255.04](thechosley at -14903.357009263324,80.0,-3255.04005980169), EntityPlayer['GROS_BATMAN'/1618267, l='servername', x=7336.10, y=122.88, z=86.96](GROS_BATMAN at 7336.10261512956,122.87500131119553,86.95652518144679), EntityPlayer['GloomyMP'/1463956, l='servername', x=1819.35, y=63.00, z=1774.63](GloomyMP at 1819.349604306488,63.0,1774.6261271499677), EntityPlayer['Arcaleus'/1689773, l='servername', x=-8692.73, y=89.88, z=-5264.55](Arcaleus at -8692.732296727716,89.87615111420544,-5264.548921948518), EntityPlayer['Fluffy_Mike'/1690789, l='servername', x=-3646.08, y=68.00, z=4866.62](Fluffy_Mike at -3646.084232265642,68.0,4866.622101213552), EntityPlayer['OhBassy'/1697882, l='servername', x=-4855.50, y=64.00, z=4668.24](OhBassy at -4855.504500412272,64.0,4668.2436823917), EntityPlayer['nobodyisfun'/1756955, l='servername', x=14929.70, y=65.00, z=-1920.22](nobodyisfun at 14929.699999988079,65.0,-1920.223227017077), EntityPlayer['Everside'/1815196, l='servername', x=-3822.55, y=76.00, z=-764.70](Everside at -3822.5459927304832,76.0,-764.7009921680437), EntityPlayer['KCrafter'/1878362, l='servername', x=-8922.59, y=76.00, z=14152.66](KCrafter at -8922.58996900003,76.0,14152.658894907441), EntityPlayer['Pookachu'/1811012, l='servername', x=789.13, y=78.00, z=9083.87](Pookachu at 789.1268700509135,78.0,9083.865998628142), EntityPlayer['seeker_of_fun'/1496574, l='servername', x=-4705.49, y=34.00, z=6725.24](seeker_of_fun at -4705.494858610884,34.0,6725.236679010117), EntityPlayer['EnderGamerGurl'/2036261, l='servername', x=9148.50, y=73.08, z=14570.50](EnderGamerGurl at 9148.5,73.07500000000746,14570.5), EntityPlayer['NoseyGuyy'/2049115, l='servername', x=5875.27, y=63.00, z=-10958.68](NoseyGuyy at 5875.271393442675,63.0,-10958.682637610822), EntityPlayer['Lars1hd'/2056437, l='servername', x=10520.11, y=71.88, z=-5604.51](Lars1hd at 10520.105840507684,71.875,-5604.513621898315), EntityPlayer['perlagerstrom'/2068922, l='servername', x=-16796.29, y=66.00, z=-11869.44](perlagerstrom at -16796.28527544878,66.0,-11869.439357419355), EntityPlayer['Dextication'/2088272, l='servername', x=-16796.38, y=66.00, z=-11868.73](Dextication at -16796.382913065747,66.0,-11868.725753470377), EntityPlayer['__Error__404__'/1878274, l='servername', x=10458.89, y=96.00, z=-5634.45](__Error__404__ at 10458.89399029043,96.0,-5634.453554035507), EntityPlayer['Astro_413'/2025121, l='servername', x=1627.05, y=71.00, z=1499.91](Astro_413 at 1627.0504683333234,71.0,1499.9055667210973)]
	Chunk stats: ServerChunkCache: 2697 Drop: 0
	Level seed: -2685307906034466525
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options:
	Level spawn location: World: (0,65,-1), Chunk: (at 0,4,15 in 0,-1; contains blocks 0,0,-16 to 15,255,-1), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
	Level time: 280160376 game time, 280180576 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 57556 (now: false), thunder time: 7373 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:776)
	at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400)
	at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660)
	at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559)
	at java.lang.Thread.run(Thread.java:745)