I am trying to sign up for an account under the name i have always RPed with. It is P? Selassie. It refuses it, but wil not give me a reason why. I have tried using just Pe Selassie and that didn't work either. Any ideas? I really want this name because I have always used it.

P or Pe is probably not considered a valid first name, as the first is just a letter and the second is just the letter trying to look a bit more like a name. It may be suggesting you start to 'always use' a better name.