Atom Alerts Problems

I am getting these errors all of a sudden. Or I may not have noticed until now.

Warning: Invalid argument supplied for foreach() in /burgus/atomalerts/AtomFeed.php on line 890
foreach($Abox_array as $lk => $lv) {
889 to 894

   if($local_alerts) { // local alerts
      foreach($Abox_array as $lk => $lv) {
         if($aBox_Icon == false) { $lv[20] = $spanA; }
         if(!$lv[20]) { $lv[3] = str_replace("<b>", "", $lv[3]); $lv[3] = str_replace("</b>", "", $lv[3]);
            $lv[3] = str_replace("&nbsp;&nbsp;&nbsp;", "", $lv[3]); }
         $sec_alrts[] = $lv[20].$lv[3].$lv[19];

Warning: Invalid argument supplied for foreach() in /burgus/atomalerts/AtomFeed.php on line 917
foreach($sec_alrts as $sak => $sav) {
917 and 918

   foreach($sec_alrts as $sak => $sav) {
      $alertBox .= $sav;