Im not sure what happened but i am getting an e500 error when i try to go on to the user end of my site. 

When I put on the Debug mode i get the message in the topic line of this form

Message:Argument 1 passed toLINKS_CLASS_EventHandler::onCollectEnabledAdsPages() must bean instance of BASE_EventCollector, instance ofBASE_CLASS_EventCollector givenFile: /home1/thaimode/public_html/ow_plugins/links/classes/event_handler.phpLine: 245

then when i go to the line in the event_handler.php i find 

)); OW::getEventManager()->trigger($event); }

How can i fix this??

my site is at thaimodelstudent.com