Product Problems

Hi,
I installed the plugin on a theme I purchased. I have a problem with the cart and with the individual products:

in the cart if I click on “Continue to Buy”, I return to the product page and not to the store. is it possible to insert a “back to shop” link on each individual product page and in the cart?

this is an example of the procedure:

Click on the product-> buy-> on the shopping cart page by clicking on “continua con gli acquisti”, return to the product and not to the store.

Thank you so much

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