We are having and issue when customer try to add multiple products to the shopping cart, if you click the link below and try to add products to the cart it says "Your shopping cart is empty".
We are using SEO URL and running zencart v1.3.9d, any help would be greatly appreciated.
Example
I did disable the option under configuration>product layout>Display Product Price/Add to Cart, but we would like to use this feature.
Thanks



