Open 2.3.3: 2.4.1 Server Crash (Natura possibly?)

[SharkCK]

Version:
2.3.3

What is the bug:
We just had a crash. I have included the log files and crash report. It seems it may have something to do with Natura? Also I'm seeing a TON of other errors from mobs being in the wrong location and chunk files that are being detected as not being where they should be.

The server is running Infinity Evolved version 2.4.1.
Crash log: https://www.dropbox.com/s/corctsx4p6erok4/crash-2016-03-02_21.55.57-server.txt?dl=0
Server log: https://www.dropbox.com/s/zlkjptda6n9j49x/2016-03-02-1.log?dl=0

Can anybody assist? The server will no longer start.

Mod & Version:


Paste.feed-the-beast.com log:


Can it be repeated:


Known Fix:

 

[SharkCK]

Also wanted to throw this in here as well... when trying to reload the server, this is the error that causes the crash:

[16:50:12] [Server thread/INFO]: Preparing level "world"
[16:50:19] [Server thread/INFO]: Preparing start region for level 0
[16:50:19] [Server thread/ERROR]: Chunk file at -6,15 is in the wrong location; relocating. (Expected -6, 15, got -2, 7)
[16:50:19] [Server thread/ERROR]: Encountered an unexpected exception
java.lang.ArrayIndexOutOfBoundsException: -23
    at net.minecraft.world.chunk.NibbleArray.func_76582_a(SourceFile:26) ~[apv.class:?]
    at net.minecraft.world.chunk.storage.ExtendedBlockStorage.func_76665_b(SourceFile:75) ~[apz.class:?]
    at net.minecraft.world.chunk.Chunk.func_76628_c(Chunk.java:548) ~[apx.class:?]
    at net.minecraft.world.chunk.Chunk.func_150812_a(Chunk.java:878) ~[apx.class:?]
    at net.minecraft.world.chunk.Chunk.func_150813_a(Chunk.java:862) ~[apx.class:?]
    at net.minecraft.world.chunk.storage.AnvilChunkLoader.loadEntities(AnvilChunkLoader.java:500) ~[aqk.class:?]
    at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:41) ~[ChunkIOProvider.class:?]
    at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:12) ~[ChunkIOProvider.class:?]
    at net.minecraftforge.common.util.AsynchronousExecutor.skipQueue(AsynchronousExecutor.java:344) ~[AsynchronousExecutor.class:?]
    at net.minecraftforge.common.util.AsynchronousExecutor.getSkipQueue(AsynchronousExecutor.java:302) ~[AsynchronousExecutor.class:?]
    at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:12) ~[ChunkIOExecutor.class:?]
    at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:126) ~[ms.class:?]
    at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101) ~[ms.class:?]
    at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:265) ~[MinecraftServer.class:?]
    at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:235) ~[MinecraftServer.class:?]
    at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:258) ~[lt.class:?]
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387) [MinecraftServer.class:?]
    at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685) [li.class:?]