Annnd... they don't give out bans for no reason. But you can always personal message the moderator or administrator about the problem. You probably did something against the rules and didn't realize it. But don't worry about it. Not like they deleted your account.
And what Millen said, do not dicuss bans on the forum. You need to read the rules. Even if you read the main ones there's rules in almost all of the boards. So yeah.
Good luck.