URL Rewriting not working in Eshop?

Hi Giang,

Running: Joomla 3.9.22 and Eshop 3.3.1

It came to my attention that URL Rewriting (clean SEO URLs) is not working properly in Eshop.
When I open the categories in the frontend and open a product I get URLs like this: index.php?option=com_eshop&view=product&id=1&catid=1&Itemid=125
I would have expected to see something like: /books/my-book/

Is there a problem in Eshop with URL Rewrite?

See the screenshot, clicking on the red arrow marked items will show a URL which is not rewritten properly.





See this webshop: www.uitgeverij-lineke-eerdmans.nl/

Click an image on the frontpage, you will see a clean URL.
Open the webshop categories, click a product: no clean URL.

Thanks, Burt