Crash

gistfile1.txt

java.util.concurrent.ExecutionException: java.lang.ArrayIndexOutOfBoundsException
    at java.util.concurrent.FutureTask.report(Unknown Source)
    at java.util.concurrent.FutureTask.get(Unknown Source)
    at net.minecraft.util.Util.runTask(Util.java:531)
    at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1088)
    at net.minecraft.client.Minecraft.run(Minecraft.java:3942)
    at net.minecraft.client.main.Main.main(SourceFile:123)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:196)
    at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:231)
    at org.multimc.EntryPoint.listen(EntryPoint.java:143)
    at org.multimc.EntryPoint.main(EntryPoint.java:34)
Caused by: java.lang.ArrayIndexOutOfBoundsException
    at net.minecraft.world.chunk.Chunk.setIntBiomeArray(Chunk.java:1661)
    at net.minecraft.world.chunk.Chunk.redirect$zzk000$readBiomeByteArray(Chunk.java:2136)
    at net.minecraft.world.chunk.Chunk.read(Chunk.java:1182)
    at net.minecraft.client.network.NetHandlerPlayClient.handleChunkData(NetHandlerPlayClient.java:745)
    at net.minecraft.network.play.server.SPacketChunkData.processPacket(SourceFile:96)
    at net.minecraft.network.play.server.SPacketChunkData.processPacket(SourceFile:18)
    at net.minecraft.network.PacketThreadUtil$1.run(PacketThreadUtil.java:22)
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at net.minecraft.util.Util.runTask(Util.java:529)
    ... 17 more