Apols ... You can't be banned from one board ..... the net seems slow today from many areas - not sure what it may or may not be but it could be that a pause in the script running on the server has caused an error in the page displayed to you ....
It shouldn't ever give a 'banned' message unless you have been banned - (we don't ban unless someone has grossly broken rules & not agreed to conform after a warning) - so obviously something was wrong in that you can post this message ....
Consider it a temp situation ......