extra utilities 2 crashreport 2

---- Minecraft Crash Report ----
// I'm sorry, Dave.

Time: 22.07.17 14:28
Description: Exception ticking world

java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.remove(Unknown Source)
	at net.minecraft.world.gen.ChunkProviderServer.func_73156_b(ChunkProviderServer.java:263)
	at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:201)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:709)
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:384)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:624)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:482)
	at java.lang.Thread.run(Unknown Source)


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

-- Head --
Thread: Server thread
Stacktrace:
	at java.util.HashMap$HashIterator.remove(Unknown Source)
	at net.minecraft.world.gen.ChunkProviderServer.func_73156_b(ChunkProviderServer.java:263)
	at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:201)

-- Affected level --
Details:
	Level name: world
	All players: 0 total; []
	Chunk stats: ServerChunkCache: 243 Drop: 244
	Level seed: -4347543223200480485
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options:
	Level spawn location: World: (0,0,0), Chunk: (at 0,0,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 0 game time, 0 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:709)
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:384)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:624)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:482)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 1.11.2
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_141, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 3791066456 bytes (3615 MB) / 5236588544 bytes (4994 MB) up to 15271460864 bytes (14564 MB)
	JVM Flags: 2 total; -Xms4G -Xmx16G
	IntCache: cache: 0, tcache: 4, allocated: 17, tallocated: 89
	FML: MCP 9.38 Powered by Forge 13.20.1.2421 5 mods loaded, 5 mods active
	States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
	UCHIJAAAA	minecraft{1.11.2} [Minecraft] (minecraft.jar)
	UCHIJAAAA	mcp{9.19} [Minecraft Coder Pack] (minecraft.jar)
	UCHIJAAAA	FML{8.0.99.99} [Forge Mod Loader] (forge-1.11.2-13.20.1.2421-universal.jar)
	UCHIJAAAA	forge{13.20.1.2421} [Minecraft Forge] (forge-1.11.2-13.20.1.2421-universal.jar)
	UCHIJAAAA	extrautils2{1.0} [extrautils2] (extrautils2-1.11.2-1.5.1.jar)
	Loaded coremods (and transformers):
	Profiler Position: N/A (disabled)
	Player Count: 0 / 10; []
	Is Modded: Definitely; Server brand changed to 'fml,forge'
	Type: Dedicated Server (map_server.txt)