it says that when i connect and when i press uk sever and it froze and inverted colors but it went but how do i fix this fatal error.

If you use a firewall program, I think it is blocking your connection on WormNET and maybe takes the focus, which creates a color desynchronisation.

Check your palette.log file and try to find which programs steals the focus :).

palette.log is only created while in-game.

i fixed it now with zonealarm i allowed every worms armeggedon part and now wormnet works