The error is at line 1219 and this line say:
function UnixDate($v)
{
if (!preg_match( "|^([0-9]{4})[-/\.]?([0-9]{1,2})[-/\.]?([0-9]{1,2})$|",
($v), $rr)) return false;
if ($rr[1] <= 1970) return 0;
// h-m-s-MM-DD-YY
return mktime(0,0,0,$rr[2],$rr[3],$rr[1]);
}
no include tag!