Time: 8/5/15 12:10 PM
Description: Exception in server tick loop

java.util.ConcurrentModificationException
        at java.util.HashMap$HashIterator.nextEntry(HashMap.java:922)
        at java.util.HashMap$KeyIterator.next(HashMap.java:956)
        at com.google.common.collect.AbstractMapBasedMultimap$WrappedCollection$WrappedIterator.next(AbstractMapBasedMultimap.java:486)
        at net.minecraft.util.ClassInheritanceMultiMap$2.computeNext(SourceFile:90)
        at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
        at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
        at net.minecraft.world.World.func_175650_b(World.java:3126)
        at net.minecraft.world.chunk.Chunk.func_76631_c(Chunk.java:952)
        at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:46)
        at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:12)
        at net.minecraftforge.common.util.AsynchronousExecutor$Task.finish(AsynchronousExecutor.java:189)
        at net.minecraftforge.common.util.AsynchronousExecutor.finishActive(AsynchronousExecutor.java:354)
        at net.minecraftforge.common.chunkio.ChunkIOExecutor.tick(ChunkIOExecutor.java:30)
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:666)
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:364)
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:598)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:478)
        at java.lang.Thread.run(Thread.java:745)


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: Linux (amd64) version 3.2.0-4-amd64
        Java Version: 1.7.0_75, Oracle Corporation
        Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
        Memory: 555489864 bytes (529 MB) / 1439694848 bytes (1373 MB) up to 3817865216 bytes (3641 MB)
        JVM Flags: 2 total; -Xmx4096M -Xms1024M
        IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
        FML: MCP v9.10 FML v8.0.99.99 Minecraft Forge 11.14.3.1450 4 mods loaded, 4 mods active
        States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = D
isabled 'E' = Errored
        UCHIJAAAA       mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
        UCHIJAAAA       FML{8.0.99.99} [Forge Mod Loader] (forge-1.8-11.14.3.1450-universal.jar)
        UCHIJAAAA       Forge{11.14.3.1450} [Minecraft Forge] (forge-1.8-11.14.3.1450-universal.jar)
        UCHIJAAAA       vintagecraft{0.7.70} [VintageCraft] (vintagecraft-1.8-0.7.69.jar)
        Loaded coremods (and transformers):
        Profiler Position: N/A (disabled)
        Player Count: 1 / 20; [EntityPlayerMP['Saraty'/4911581, l='world', x=496.41, y=91.00, z=-439.69]]
        Is Modded: Definitely; Server brand changed to 'fml,forge'
        Type: Dedicated Server (map_server.txt)