Hello, @Ale,
Your issue is resolved now, kindly check back to your site after clearing the browser cache. You have total three categories. I check all of them now, and they appear fine, as you can see in this video: https://streamable.com/cnxhki the issue is caused by the wrong permalink structures for shop/category pages. I have set them to default from the Dashboard >> Settings >> Permalinks as you can see in this image: https://postimg.cc/Z99Bd7X7
Regards 8Themes Team.