change line 88 - 93:
//Shipping
$this->Shipping[] = new WA_eCart_Rule(urldecode("Shipping%20&%20Handling%20per%20item"), true, "WAEC_eCart1_ShippingHandlingperitem");
$this->Shipping[] = new WA_eCart_Rule(urldecode("Shipping%20&%20Handling%20per%20item"), true, "WAEC_eCart1_ShippingHandlingperitem");
$this->Shipping[] = new WA_eCart_Rule(urldecode("Shipping%20&%20Handling%20per%20item"), true, "WAEC_eCart1_ShippingHandlingperitem");
$this->Shipping[] = new WA_eCart_Rule(urldecode("Shipping%20&%20Handling%20per%20item"), true, "WAEC_eCart1_ShippingHandlingperitem");
$this->Shipping[] = new WA_eCart_Rule(urldecode("US%20Shipping"), true, "WAEC_eCart1_USShipping");
to:
//Shipping
$this->Shipping[] = new WA_eCart_Rule(urldecode("Shipping%20&%20Handling%20per%20item"), true, "WAEC_eCart1_ShippingHandlingperitem");
$this->Shipping[] = new WA_eCart_Rule(urldecode("US%20Shipping"), true, "WAEC_eCart1_USShipping");