Cart & Checkout not working anymore

I’ve checked with my developer of the theme Mixtas and it seems like Site Reviews Plugin doesn’t work with the newest WooCommerce Update anymore, the Cart or Checkout dont load anymore, what is frustrating as I wanted to use the plugins with image add-ons, now its seems to break my site – im not even sure why the review plugin needs to be loading anything on the cart or checkoout page.

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