I have to apologize on behalf of the staff of the server for this issue, but you also have to understand where we're coming from in trying to make the server as bot-free as possible.
Usually, all you'd have to do is contact a staff member that is online, in a way other than minecraft and ask them to temporarily disable the plugin to let you in. Eg. My skype is Bossinstyle
It shouldn't happen frequently anyways, but as Ymere and I found today; right when we disabled the plugin within moments the bots had returned.
Also, next time remember to post a thread like this in the raging section of the forum.