Can’t manage to show this filter at all and very much appreciate some help

Hello! I installed the YITH Woocommerce ajax navigation and was very excited when reading your description, that will imediatly show on the shop page.. and was very sad after the installation because it did not. Could you please help me? It will mean very much to me if I could activate and people could easly find my products

The page I need help with: [log in to see the link]