(ERROR) Classifieds Plugin creating thousands of pages AUTOMATICALLY

I installed the classifieds plugin last night and since then it has posted over 5k pages automatically (Classifieds, Checkout, Classifieds, Checkout) over and over again and will not stop. There is nothing in the settings that has anything to do with it creating pages, but otherwise it is working correctly..

It has caused "out of memory" errors when trying to view "All" my pages now. HELP!