Products not showing when we select a category

In my default menu the item "hikashop-menu-for-categories-listing": I could show all my categories on the main side of my website.
However one I click on one category, the products do not show.
I try everything, read carefully the manual but nothing worked.
This is strange as I have done one year ago a website with Hikashop 2.0.0 and it works perfectly well.
Any idea? Thanks in advance for your help

Hi,

The "category listing" menu must have a "product listing" module associated if you want to display the products of the selected category.
www.hikashop.com/en/support/documentatio...html#categories_menu

Regards,