We cannot tell from here. Please post your question on our helpdesk, and include the channel you were banned from, and the actual ban message if possible.
You can contact ircops through the helpdesk at
http://chanops.org/helpdesk
Most bans are relatively temporary, so it may have already been lifted. Please check before opening a ticket on the helpdesk.
Thank You,
TNTease (IrcOp)