Products with variations don’t work

On the free version, the products with variations, when the pop up displays the variants, and then after selecting any of the variants, prices are not updated and the BIG add to cart button does not work, not adding the product to the cart.

Also on the free version, the title of the products, even when underlined, do not link to a description or to a product

I prefer to have a picture in the menu, this is included on the PRO version, but the above makes me hesitate whether it will work

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