I've been playing Agrarian Skies with a few friends, but now it seems that we can't create a new party. We had a party before, but one of them died and got banned. So we unbanned them and then the party got deleted and we can't make a new one. I can't find out what is wrong with it. I've deleted the player files and I haven't found anything related in the config that would change anything. I have no idea what to do at this point.