Chunk Error

We are having a huge problem in my server were the landscape has randomly changed in some areas, and when we go to 1 area in paticular we get this:

Code:

2011-04-28 16:55:48 [INFO] Chunk (-27, -12) stored at  (-31, -9)
2011-04-28 16:55:48 [SEVERE] java.lang.Throwable
2011-04-28 16:55:48 [SEVERE]    at org.bukkit.craftbukkit.util.LongHashtable.get(LongHashtable.java:32)
2011-04-28 16:55:48 [SEVERE]    at net.minecraft.server.ChunkProviderServer.getOrCreateChunk(ChunkProviderServer.java:112)
2011-04-28 16:55:48 [SEVERE]    at net.minecraft.server.World.getChunkAt(World.java:213)
2011-04-28 16:55:48 [SEVERE]    at net.minecraft.server.World.j(World.java:1618)
2011-04-28 16:55:48 [SEVERE]    at net.minecraft.server.World.doTick(World.java:1466)
2011-04-28 16:55:48 [SEVERE]    at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:361)
2011-04-28 16:55:48 [SEVERE]    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:285)
2011-04-28 16:55:48 [SEVERE]    at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)

Over and over again. It just spams my console. When we leave the area it stops. Any ideas?

 

Chunkster Use

1. download the zip file: Chunkster
2. unzip it
3. copy Chunkster.jar (in dist) to the same folder that your craftbukkit.jar file is in
4. from a command prompt (in the folder you just copied chunkster to) enter "java -jar Chunkster.jar <world directory>"

ex: java -jar Chunkster.jar iceworld​

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