Actually let me try to explain more about what I am doing, as I still have this problem and I am getting nowhere. Basically I'm trying to bypass the zencart product listing and go directly to the cart. This means I use a custom add to cart button on my own product page (not a zencart page (example: http://www.thekeywestsoapfactory.com/Pages/deadseaslt.htm). The add to cart button uses the below custom link to add the product directly to the zc shopping cart bypassing the the product listing page:
<form name="cart_quantity" action="http://thekeywestsoapfactory.com/zencart/index.php?main_page=product_info&cPath=1&products_id=3&action=add_product" method="post" enctype="multipart/form-data">
<div id="cartAdd">
Order:<br>
<input type="hidden" name="cart_quantity" value="1" maxlength="6" size="4" />
<input type="hidden" name="products_id" value="4" />
<inputtype="image" src="../Images/addtocart2.gif" alt="Add to Cart" title=" Add to Cart " /> </form>
This has been working fine on my site since 2011, however after a recent reinstall I am now getting the "Whoops! Your session has expired." error, when hitting the above add to cart button. I'm thinking I'm missing a setting somewhere in the zc config. Can someone please help me as I am desperate to get past this issue. I am weilling to even have a phone conversation in necessary.