Banned for no reason?

Alright I got banned for no reason like 10-30 minutes ago.
"You have been banned for the following reason:
No reason was specified.

Date the ban will be lifted: Never

If you feel that this ban was given in error, you may explain why you think so in the Dispute Forum without registering a new account, and a moderator or administrator will review your case and come to a final decision."

Could this be a mistake ban or any reason to this ban?

P.S How do I respond again?