---- Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 11/02/17 01:09
Description: Exception ticking world entities

java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1437)
	at java.util.HashMap$KeyIterator.next(HashMap.java:1461)
	at net.minecraft.server.v1_7_R4.World.tickEntities(World.java:1504)
	at net.minecraft.server.v1_7_R4.WorldServer.tickEntities(WorldServer.java:516)
	at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:706)
	at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:289)
	at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584)
	at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490)
	at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628)


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

-- Head --
Stacktrace:
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1437)
	at java.util.HashMap$KeyIterator.next(HashMap.java:1461)
	at net.minecraft.server.v1_7_R4.World.tickEntities(World.java:1504)
	at net.minecraft.server.v1_7_R4.WorldServer.tickEntities(WorldServer.java:516)

-- Affected level --
Details:
	Level name: world
	All players: 2 total; [EntityPlayer['rexysweet'/652059, l='world', x=124,94, y=86,00, z=219,11](rexysweet at 124.93681659173853,86.0,219.10552837590825), EntityPlayer['Ze_Logan'/668336, l='world', x=129,79, y=86,00, z=220,24](Ze_Logan at 129.78642576638393,86.0,220.2449462741717)]
	Chunk stats: ServerChunkCache: 184 Drop: 0
	Level seed: -1951092663367428243
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options:
	Level spawn location: World: (132,86,218), Chunk: (at 4,5,10 in 8,13; contains blocks 128,0,208 to 143,255,223), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 69887393 game time, 69986228 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 53673 (now: false), thunder time: 28560 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:706)
	at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:289)
	at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584)
	at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490)
	at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628)