FTB Ultimate RuntimeException error

[LittleTragik]

Im not good at reading stuff like this, but i had a server running for about a week now, and when i tried to hop on today it didnt work, so i reset the server now i get this error (Note: Im using MineOs, but that doesn't change anything but the look, this is just the console)
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:564)
at codechicken.chunkloader.ChunkLoaderEventHandler.onWorldLoad(ChunkLoaderEventHandler.java:90)
at net.minecraftforge.event.ASMEventHandler_161_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:575)
at codechicken.chunkloader.ChunkLoaderManager.load(ChunkLoaderManager.java:560)

... 8 more

 

[LittleTragik]

So i made a new server, and it booted up fine but when i switch the world over i get the same error again

 

[cjm721]

Currupt logintimes.dat file in chickenchunks. delete it.