CakeShop cart problem

Hello I bought this theme for US$ 19:

It has some product, very beautiful designed, but… doens´t work.
When you add something in the cart, it simply don´t add anything. It is just something static.

I want my money back, or a solution
Thank you

Hi @santabaia

it is an HTML template, not a WordPress or any other CMS, so you need to use it as an HTML,