public function update_mailpoet()
 {
     $result = 0;
     $list = ESSBSocialFollowersCounterHelper::get_option('mailpoet_id');
     if (!empty($list)) {
         if ($list == 'all') {
             $result = ESSBSocialFollowersCounterHelper::mailpoet_total_subscribers();
         } else {
             $result = ESSBSocialFollowersCounterHelper::mailpoet_get_list_users($list);
         }
     }
     return $result;
 }