Having uploaded a number of products into Zen Cart, it was found that when the product image was clicked the central page content area had a 404 error, instead of the product detail.
An example of the querystring in the URL is:
main_page=_info&products_id=27
In the querystring above the value for main_page is incorrect, _info. A
correctly formatted querystring looks like:
main_page=product_info&products_id=27
It was also found that within the admin pages clicking on a product to make
changes resulted in badly formed admin page URLs. An example is given below:
http://www.example.com/admin/.php?x=32&y=7&product_type=1&cPath=2&action=new_product
Using phpMyAdmin it was found that in the table product_types the type_handler field had no value against one of the product types.
This was set as ‘product’ with the result that both of the above issues were corrected.
