Link to page of a specific category

I am trying to create a link to a page that contains book reviews of a specific genre. In the demo, it looks like the link is: https://recencio.com/buches/genres/fantasy/. I have replaced recensio.com with my url and have also removed the “buches”. Both cases are giving me a 404 error message.

PS – I love your plugin, but it would be very helpful to have instructions for basic set-up like this.