Tonight my website went blank, and stopped responding. I switched error reporting to maximum and received this as an error message:

Notice: Undefined variable: item in /var/www/sites/SITENAME.com/media/com_easysocial/apps/user/relationship/relationship.php on line 83



Notice: Trying to get property of non-object in /var/www/sites/SITENAME.com/media/com_easysocial/apps/user/relationship/relationship.php on line 83



Fatal error: Call to a member function hasCommunityAccess() on a non-object in /var/www/sites/SITENAME.com/media/com_easysocial/apps/user/relationship/relationship.php on line 86

I have renamed relationship.php to relationship.php.old -
Nothing new has been installed or enabled.
File modification date is July 4, 2015, so no changes there.
Please research and reply.