Server continues to crash

Hi there,
my server keeps crashing for some reason, and when it does it sends out the crash report pasted below

Code:

---- Minecraft Crash Report ----
// Ooh. Shiny.
 
Time: 2/17/13 11:08 AM
Description: Exception in server tick loop
 
java.lang.ArrayIndexOutOfBoundsException: -37
    at net.minecraft.server.v1_4_R1.ChunkSection.a(ChunkSection.java:41)
    at net.minecraft.server.v1_4_R1.Chunk.getTypeId(Chunk.java:350)
    at net.minecraft.server.v1_4_R1.Chunk.a(Chunk.java:637)
    at net.minecraft.server.v1_4_R1.Chunk.a(Chunk.java:624)
    at net.minecraft.server.v1_4_R1.ChunkRegionLoader.loadEntities(ChunkRegionLoader.java:350)
    at org.bukkit.craftbukkit.v1_4_R1.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:47)
    at org.bukkit.craftbukkit.v1_4_R1.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:13)
    at org.bukkit.craftbukkit.v1_4_R1.util.AsynchronousExecutor$Task.finish(AsynchronousExecutor.java:179)
    at org.bukkit.craftbukkit.v1_4_R1.util.AsynchronousExecutor.finishActive(AsynchronousExecutor.java:287)
    at org.bukkit.craftbukkit.v1_4_R1.chunkio.ChunkIOExecutor.tick(ChunkIOExecutor.java:30)
    at net.minecraft.server.v1_4_R1.MinecraftServer.r(MinecraftServer.java:537)
    at net.minecraft.server.v1_4_R1.DedicatedServer.r(DedicatedServer.java:224)
    at net.minecraft.server.v1_4_R1.MinecraftServer.q(MinecraftServer.java:494)
    at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:427)
    at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849)

This is a major problem that I can't seem to solve :c

Thanks

 

To me it looks like its outdated have you tried updating bukkit?

 

Yes, I've updated to the newest bukkit recommended build and had gotten this error. I tried updating to the newest dev build and I'm still getting this..

 

The whole crash report please.

 

http://pastebin.com/8PfJDYx4

here you go

 

Do you use VariableTriggers? I removed it and it fixed it, also replace it with Commander, does the same stuff (kinda)