public function execute()
 {
     $user_group_sid = SJB_Request::getVar('sid', null);
     if (!is_null($user_group_sid)) {
         SJB_UserGroupManager::deleteUserGroupBySID($user_group_sid);
         SJB_HelperFunctions::redirect(SJB_System::getSystemSettings('SITE_URL') . "/user-groups/");
     } else {
         echo 'The system  cannot proceed as User Group SID is not set';
     }
 }