Can't join my server

[Exoterm]

Launcher/pack Version:

Server 2.1.1 and technic launcher 0.5.4.8

Operating System:

Windows 7 32 bit

Version of Java:

java 7 32 bit

Description of Problem:

I was playing last night then it suddenly stopped working and I kept getting error msgs when trying to join.

I tried making a new world, didn't work.

Error Messages:

Connection Lost

Internal exception: java.lang.NullPointerException

Link to pastebin of log:

10:00:22 [sEVERE] java.lang.NullPointerException

10:00:22 [sEVERE]    at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:34)

10:00:22 [sEVERE]    at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:191)

10:00:22 [sEVERE]    at net.minecraft.server.Packet254GetInfo.handle(SourceFile:16)

10:00:22 [sEVERE]    at net.minecraft.server.NetworkManager.b(NetworkManager.java:231)

10:00:22 [sEVERE]    at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:52)

10:00:22 [sEVERE]    at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:61)

10:00:22 [sEVERE]    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:543)

10:00:22 [sEVERE]    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:441)

10:00:22 [sEVERE]    at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)

Tried searching on the forum didn't come up with any solution.

[steelcryo]

Go into your server files.

Find your world folder (may be named something else if you have renamed your world).

Go in there and find the players folder.

Find your username and delete the file.

This will cause you to lose your world point (where you log in) and any items you are carry but it's the only fix i know to null pointer errors.

[Phantom329]

Are you sure thats the only fix? I'm carying dark matter items!!!!

[steelcryo]

it's the only one I have found so far

[xxmikegigsxx]

Turn the server on and off.

[Phantom329]

YAY!!!

The error resolved its self!

and guess what!!

I have another error :/