in the piccCart_PHP.php file, change the following code:
if (true && ((sizeof($this->Items) > 0) && (isset($_SESSION['PromoCode'])) && (isset($_SESSION['PromoAmount'])) && ($this->TotalColumn("TotalPrice") > $_SESSION['PromoMin']) && (time() <= strtotime("$_SESSION['PromoDate']")))) {
to:
if (true && ((sizeof($this->Items) > 0) && (isset($_SESSION['PromoCode'])) && (isset($_SESSION['PromoAmount'])) && ($this->TotalColumn("TotalPrice") > $_SESSION['PromoMin']) && (time() <= strtotime($_SESSION['PromoDate'])))) {