I need serious server help.

Something in my server is causing players to have the ability to Op themselves as well as set their gamemodes. Apart from that, they are unbannable, whenever i try to ban a typical player it tells me i cannot ban them even after they have been de-opped.


http://puu.sh/18Gug
http://puu.sh/18Gxk

Those are a list of plugins i currently have in case this helps at all. I need help ASAP