Argument 1 passed to XenForo_Model_User::getUsers() must be of the type array, null given, called in /var/www/html/community/library/Snog/SocialGroups/ControllerPublic/Index.php on line 920 and defined
[LIST=1]
[*]XenForo_Application::handlePhpError() in XenForo/Model/User.php at line 310
[*]XenForo_Model_User->getUsers() in Snog/SocialGroups/ControllerPublic/Index.php at line 920
[*]Snog_SocialGroups_ControllerPublic_Index->actionSaveGroup() in XenForo/FrontController.php at line 347
[*]XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 134
[*]XenForo_FrontController->run() in /var/www/html/community/index.php at line 13
[/LIST]