i want to add a list form in the form of order, but always throws me a message that say that i have to complete all the fields
this is the page http://200.83.219.31/quickcart/
i put the list form in "Codigo Postal (ZIP):" for testing before this, i test putting a new field text and it works well. to do that i modified orders.php, orders_delivery.tpl, orders_print.tpl and the corresponding of admin.