My user is BiggieLover123 so its not too long, I made this account years ago when I was like 12 and it worked back then.
Your account may have been disbanded, Since the site automatically gets rid of inactive accounts not used for around 1 year, Maybe this is the problem? Although I don't know how you would be able to talk on the forums.
So I'm not very sure on what the problem is, Try PMing a Mod/Admin, As I said earlier.