Error: 255220-1

Hello community etc..

The following problem is about the error 255220-1.
My problem:
Everytime(!) i play with my MAIN account, i get this strange Error code mid in game!
And sometimes "Disconnected from server" after the 225220-1.


So i ask you.What the hell is this 255220-1??
i' ve been playing this game since 2 years and i've never got this error!?

Here are 2 screenshots i've made while and after it happened to me:
http://img194.imageshack.us/i/crossfire201104240000.png/
http://img38.imageshack.us/i/crossfire201104240001.png/

The strange thing about this, it does happen only to my MAIN account.
I just tried it.

So i hope you can help me and the others who have the same problem!