Tekkit Classic 1.2.5 Unexpected exception

[UXRO]

Hi. Sorry if this is in wrong form posted i am new here... So any way i have a big problem with my server... Well that is what i did..

1.Replace all mods

2.Replace all files just leave world file

3.Change version of tekkit classic to 3.1.2

4.Replace all files with new and load new world

5.After 1 day same problem....

(i also try run with no plugins same not working)

Now i am running again 1.2.5 tekkit classic...

And this problem show up like 5 times before....

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6:09:46 AM CONSOLE: [sEVERE] java.lang.ClassFormatError: Truncated class file

6:09:46 AM CONSOLE: [sEVERE] at java.lang.ClassLoader.defineClass1(Native Method)

6:09:46 AM CONSOLE: [sEVERE] at java.lang.ClassLoader.defineClass(Unknown Source)

6:09:46 AM CONSOLE: [sEVERE] at java.security.SecureClassLoader.defineClass(Unknown Source)

6:09:46 AM CONSOLE: [sEVERE] at java.net.URLClassLoader.defineClass(Unknown Source)

6:09:46 AM CONSOLE: [sEVERE] at java.net.URLClassLoader.access$100(Unknown Source)

6:09:46 AM CONSOLE: [sEVERE] at java.net.URLClassLoader$1.run(Unknown Source)

6:09:47 AM CONSOLE: [sEVERE] at java.net.URLClassLoader$1.run(Unknown Source)

6:09:47 AM CONSOLE: [sEVERE] at java.security.AccessController.doPrivileged(Native Method)

6:09:47 AM CONSOLE: [sEVERE] at java.net.URLClassLoader.findClass(Unknown Source)

6:09:47 AM CONSOLE: [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source)

6:09:47 AM CONSOLE: [sEVERE] at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

6:09:47 AM CONSOLE: [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source)

6:09:47 AM CONSOLE: [sEVERE] at dan200.computer.shared.NetworkedComputerHelper.<init>(NetworkedComputerHelper.java:44)

6:09:47 AM CONSOLE: [sEVERE] at dan200.computer.shared.TileEntityComputer.<init>(TileEntityComputer.java:32)

6:09:47 AM CONSOLE: [sEVERE] at dan200.computer.shared.RedPowerTileEntityComputer.<init>(RedPowerTileEntityComputer.java:7)

6:09:47 AM CONSOLE: [sEVERE] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

6:09:47 AM CONSOLE: [sEVERE] at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

6:09:47 AM CONSOLE: [sEVERE] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

6:09:47 AM CONSOLE: [sEVERE] at java.lang.reflect.Constructor.newInstance(Unknown Source)

6:09:47 AM CONSOLE: [sEVERE] at java.lang.Class.newInstance0(Unknown Source)

6:09:47 AM CONSOLE: [sEVERE] at java.lang.Class.newInstance(Unknown Source)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.TileEntity.c(TileEntity.java:67)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.ChunkRegionLoader.a(ChunkRegionLoader.java:294)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.ChunkRegionLoader.a(ChunkRegionLoader.java:65)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.ChunkRegionLoader.a(ChunkRegionLoader.java:54)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.ChunkProviderServer.loadChunk(ChunkProviderServer.java:143)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:86)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.PlayerInstance.<init>(PlayerInstance.java:26)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.PlayerManager.a(PlayerManager.java:60)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.PlayerManager.addPlayer(PlayerManager.java:99)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.ServerConfigurationManager.c(ServerConfigurationManager.java:149)

6:09:47 AM CONSOLE: [sEVERE] at forge.PacketHandlerServer.finishLogin(PacketHandlerServer.java:169)

6:09:47 AM CONSOLE: [sEVERE] at forge.PacketHandlerServer.onModListResponse(PacketHandlerServer.java:108)

6:09:47 AM CONSOLE: [sEVERE] at forge.PacketHandlerServer.onPacketData(PacketHandlerServer.java:42)

6:09:47 AM CONSOLE: [sEVERE] at forge.MessageManager.dispatchIncomingMessage(MessageManager.java:419)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:1361)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.Packet250CustomPayload.handle(SourceFile:46)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.NetworkManager.b(NetworkManager.java:234)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:119)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:83)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:579)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:467)

6:09:47 AM CONSOLE: [sEVERE] at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

6:09:47 AM CONSOLE: [sEVERE] Unexpected exception

6:09:47 AM CONSOLE: class file

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Well we are using MC MY ADMIN panel and runing that on host not on pc so it's 24/7 server... So any one have idea what that means? Because i get this massage like 4 times after i replace all files... Is that maybe because of tekkit.jar java version? And how to replace java?

6:10:19 AM Server: /version

6:10:20 AM CONSOLE: [iNFO] This server is running CraftBukkit version git-Bukkit-jenkins-CraftBukkit-173 (MC: 1.2.5) (Implementing API version 1.2.5-R4.1-MCPC-SNAPSHOT)

[UXRO]

Well i found out that this problem is in world file... Well i already know that it was world file but yea now i use a backup that i make 1 day ago and it works... But for some reasons the new world file don't work... Any one any idea how to fix that world file so it won't give me that error?

Oh and if i delete from folder players all files of players info then it works again... But after that soon or later same thing happend...

[UXRO]

Well i download now 3.1.3 and it looks like it works... I use same world and for now i didn't get that error.