crash

2013-03-21 21:40:56 [INFO] Starting minecraft server version 1.4.7
2013-03-21 21:41:25 [SEVERE] Encountered an unexpected exception RuntimeException
java.lang.RuntimeException: Error while loading chunk info
at cpw.mods.fml.server.FMLServerHandler.haltGame(FMLServerHandler.java:102)
at cpw.mods.fml.common.FMLCommonHandler.raiseException(FMLCommonHandler.java:196)
at codechicken.chunkloader.ChunkLoaderManager.load(ChunkLoaderManager.java:565)
at codechicken.chunkloader.ChunkLoaderEventHandler.onWorldLoad(ChunkLoaderEventHandler.java:90)
at net.minecraftforge.event.ASMEventHandler_144_ChunkLoaderEventHandler_onWorldLoad_Load.invoke(.dynamic)
at net.minecraftforge.event.ASMEventHandler.invoke(ASMEventHandler.java:35)
at net.minecraftforge.event.EventBus.post(EventBus.java:103)
at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:279)
at ho.c(DedicatedServer.java:180)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:458)
at fy.run(SourceFile:849)
Caused by: java.io.EOFException
at java.io.DataInputStream.readInt(DataInputStream.java:392)
at codechicken.chunkloader.ChunkLoaderManager.loadLoginTimes(ChunkLoaderManager.java:576)
at codechicken.chunkloader.ChunkLoaderManager.load(ChunkLoaderManager.java:561)
... 8 more
2013-03-21 21:41:25 [SEVERE] Could not save crash report to ./crash-reports/crash-2013-03-21_21.41.25-server.txt
java.io.FileNotFoundException: ./crash-reports/crash-2013-03-21_21.41.25-server.txt (No such file or directory)
at java.io.FileOutputStream.open(Native Method)
at java.io.FileOutputStream.<init>(FileOutputStream.java:212)
at java.io.FileOutputStream.<init>(FileOutputStream.java:165)
at java.io.FileWriter.<init>(FileWriter.java:90)
at a.a(CrashReport.java:216)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:531)
at fy.run(SourceFile:849)
2013-03-21 21:41:25 [SEVERE] We were unable to save this crash report to disk.