Hi Julie,
I see. The links you set in your menu are incorrect. You’ll need to link the Archive page. For instance, the link you set in for “Mame” ends with /mama. It should be /category/mama.
You should select the Archive pages from the Category section when building your menu. Example: https://share.getcloudapp.com/geuOwWwp
Moreover, you shouldn’t need to create new static pages from the Archive pages as these are already pre-built. You only need to create one if you planning on creating something really different.