mobs.jar erroe

2012-07-12 04:14:58 [INFO] [Essentials] Enabling Essentials v2.9.1
2012-07-12 04:14:58 [INFO] [Vault][Economy] Essentials Economy hooked.
2012-07-12 04:14:58 [INFO] Essentials: Using GroupManager based permissions.
2012-07-12 04:14:58 [INFO] [EssentialsProtect] Enabling EssentialsProtect v2.9.1
2012-07-12 04:14:58 [INFO] Initializing c3p0-0.9.1.2 [built 21-May-2007 15:04:56; debug? true; trace: 10]
2012-07-12 04:14:58 [INFO] [EssentialsSpawn] Enabling EssentialsSpawn v2.9.1
2012-07-12 04:14:58 [INFO] [EssentialsChat] Enabling EssentialsChat v2.9.1
2012-07-12 04:14:58 [INFO] [Mobs] Enabling Mobs v1.2.5 b32
2012-07-12 04:14:59 [INFO] [Mobs] ------------
2012-07-12 04:14:59 [INFO] [Mobs] Tracked mobs
2012-07-12 04:14:59 [INFO] [Mobs] ------------
2012-07-12 04:14:59 [INFO] [Mobs] PIG_ZOMBIE
2012-07-12 04:14:59 [INFO] [Mobs] ZOMBIE
2012-07-12 04:14:59 [INFO] [Mobs] ------------
2012-07-12 04:14:59 [INFO] Server permissions file permissions.yml is empty, ignoring it
2012-07-12 04:14:59 [INFO] Done (6.329s)! For help, type "help" or "?"
2012-07-12 04:14:59 [INFO] GroupManager - INFO - Bukkit Permissions Updated!
2012-07-12 04:14:59 [SEVERE] java.io.EOFException
2012-07-12 04:14:59 [SEVERE] 	at java.io.ObjectInputStream$PeekInputStream.readFully(Unknown Source)
2012-07-12 04:14:59 [SEVERE] 	at java.io.ObjectInputStream$BlockDataInputStream.readShort(Unknown Source)
2012-07-12 04:14:59 [SEVERE] 	at java.io.ObjectInputStream.readStreamHeader(Unknown Source)
2012-07-12 04:14:59 [SEVERE] 	at java.io.ObjectInputStream.<init>(Unknown Source)
2012-07-12 04:14:59 [SEVERE] 	at me.coldandtired.mobs.Main.get_mobs(Main.java:400)
2012-07-12 04:14:59 [SEVERE] 	at me.coldandtired.mobs.Main.convert_mobs(Main.java:542)
2012-07-12 04:14:59 [SEVERE] 	at me.coldandtired.mobs.Main$2.run(Main.java:227)
2012-07-12 04:14:59 [SEVERE] 	at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:126)
2012-07-12 04:14:59 [SEVERE] 	at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:533)
2012-07-12 04:14:59 [SEVERE] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:459)
2012-07-12 04:14:59 [SEVERE] 	at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)