How do I get the menu item pages to work

I'm trying to get an understanding of how to get the menu item pages display.
the pages are blank idk why I cant seem to get them working. Also, this shows up on my on the backend page of Easysocial ( Strict Standards: Declaration of SocialUserAppRelationship:nNotificationLoad() should be compatible with SocialAppItem:nNotificationLoad(SocialTableNotification &$item) in /home2/giovani/public_html/media/com_easysocial/apps/user/relationship/relationship.php on line 222 ).