Add to cart button

Hello,
the plugin is giving me problems with the “add to cart” button on the category pages. Clicking on the button it just open the single product page instead of add the product to the cart. I have talked with the theme’s support and they told me the problem depends on this plugin. Infact if i deactive it, the button works properly.

wordpress: 5.7
woocommerce: 5.1.0
Flexible Product Fields: 1.7.0
Flexible Product Fields Pro: 1.8.0

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