The rudy bot is currently down for maintenance. It should be up and running here in a few days, although I have no exact date of when. All you can do for the meantime is be patient and I'll put another post when rudy is up again.
For the donator usergroup, you need to go to redcountyrp.com, log in to your master account, click on support tickets, click the green "create" button, and then you can enter the subject needed, i.e. "Need donator usergroup on forums". Then, below that, you'll select "forum related", and then finally, below that, you'll just say that you need the forum donator usergroup.