Stop all servers in Puffelpanel
i thinking that more than one servers are started... with same token, but i cant see server which started... i think its bug. btw, token is correct.
What game server are you running?
This seems like an issue with the Steam account token system, not necessarily PufferPanel. You can check to see if there are other servers running on your system by running
Which will give you a list of all the running processes.