persistent party bug

I have this since 10 days on both settlers league characters(only) and it does not go away. It returns every time i log in to play.

I get an error message: "the party does not exist.", when trying to invite other players.

I cant invite other players to a party, cause of the bugged party in screenshot and i was not able remove that guy from the party, even when he was online, nothing worked. We tried some things.


Please help, how can i fix this ?

you need someone else to invite you to another party
edit: apparently also swapping your login server while doing this helps.