If you want, you can try logging in by copy-pasting the following: ÔäóKitten┬®
I'm guessing your name had a symbol, such as the copyright, trademark, and hyphen symbols, which corrupted the encoding.
This issue actually appeared two years ago when several forum names and posts had an encoding error which prompted (forum) administrators to fix the issue.
I'll be referring this issue to lead administrators. If no response is given within 72 hours, I'd suggest making a support ticket (by going to the User Control Panel) to assist you better. Your forum name was "Kitten" so it will be changed to that.