Team Crash is a Server Bug that makes a player to be automatically kicked from the host room when he adds a team.
Players that experience this bug have not installed Worms 3D Service Patch 2. No other causes are known.
There are no further consequences appart from being kicked from the host room when adding a team.
The only solution to this bug is to download Service Patch 2 from the Worms 3D official website and to install it in the system.