Categories not working

The product categories aren’t working on the site, both in the filters on the sidebar and when I click on the category link in the breadcrumbs. In both cases, it displays all the products.
When clicking Prisme Noir, I should only have dark background fabrics and clicking Prisme Blanc, only have white background fabrics.
As I need to show a functional website, I deactivated the sidebar but you can still test the problem using the breadcrumb.
I have already tried disabling the plugins without success. Can you help me please?

• This topic was modified 1 year, 6 months ago by solene.tessier.
• This topic was modified 1 year, 6 months ago by solene.tessier.