Hi,
You must have a canonical URL configured in your products, and that canonical URL doesn't contain the "category_pathway" parameter necessary for this, and you have the "force canonical URLs on listings" setting activated.
So you have 3 ways to "fix" this:
- turn off the "force canonical URLs on listings" setting in the HikaShop configuration so that the URL on the listings is generated dynamically.
- empty the "canonical URL" of your products so that the URL on the listings is generated dynamically.
- modify the canonical URL in your products to include the category_pathway parameter, similarly to how HikaShop would add it with the "force canonical URLs on listings" setting turned off.