Crash Report

---- Minecraft Crash Report ----

WARNING: coremods are present:
  SpongeCoremod (spongeforge-1.8-1530-2.1-DEV-767.jar)
  Java8CheckerCoremod (Pixelmon-1.8-4.0.8-universal.jar)
Contact their authors BEFORE contacting forge

// Daisy, daisy...

Time: 10/28/15 7:45 PM
Description: Exception in server tick loop

java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(Unknown Source)
	at java.util.HashMap$KeyIterator.next(Unknown Source)
	at com.google.common.collect.AbstractMapBasedMultimap$WrappedCollection$WrappedIterator.next(AbstractMapBasedMultimap.java:486)
	at net.minecraft.util.ClassInheritanceMultiMap$2.computeNext(SourceFile:90)
	at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
	at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
	at net.minecraft.world.World.func_175650_b(World.java:3126)
	at net.minecraft.world.chunk.Chunk.func_76631_c(Chunk.java:952)
	at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:46)
	at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:12)
	at net.minecraftforge.common.util.AsynchronousExecutor.skipQueue(AsynchronousExecutor.java:344)
	at net.minecraftforge.common.util.AsynchronousExecutor.getSkipQueue(AsynchronousExecutor.java:302)
	at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:12)
	at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:117)
	at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:92)
	at net.minecraft.server.MinecraftServer.prepareSpawnArea(MinecraftServer.java:413)
	at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:389)
	at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:381)
	at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:259)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)
	at java.lang.Thread.run(Unknown Source)


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

-- System Details --
Details:
	Minecraft Version: 1.8
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_65, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 2932150056 bytes (2796 MB) / 3625975808 bytes (3458 MB) up to 4772593664 bytes (4551 MB)
	JVM Flags: 2 total; -Xmx5G -Xms3G
	IntCache: cache: 13, tcache: 0, allocated: 13, tallocated: 95
	FML: MCP v9.10 FML v8.0.99.99 Minecraft Forge 11.14.3.1530 6 mods loaded, 6 mods active
	States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
	UCHIJAA	mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
	UCHIJAA	FML{8.0.99.99} [Forge Mod Loader] (forge-1.8-11.14.3.1530-universal.jar)
	UCHIJAA	Forge{11.14.3.1530} [Minecraft Forge] (forge-1.8-11.14.3.1530-universal.jar)
	UCHIJAA	Sponge{DEV} [Sponge] (minecraft.jar)
	UCHIJAA	Core{unknown} [Core Plugin] (Core.jar)
	UCHIJAA	pixelmon{4.0.8} [Pixelmon] (Pixelmon-1.8-4.0.8-universal.jar)
	Loaded coremods (and transformers):
SpongeCoremod (spongeforge-1.8-1530-2.1-DEV-767.jar)

Java8CheckerCoremod (Pixelmon-1.8-4.0.8-universal.jar)

	Profiler Position: N/A (disabled)
	Player Count: 0 / 20; []
	Is Modded: Definitely; Server brand changed to 'fml,forge,SpongeForge'
	Type: Dedicated Server (map_server.txt)