add-to-cart dont work and price dont update

Hello,
I have a problem with the plugin. It works for the first product like here https://prnt.sc/n6f9zw
but when i add more products to the store the plugin doesnt work anymore. the price doesnt update and you can not add the product to the cart. you can see it in this screenshot
https://prnt.sc/n6favl.

this problem is is just when ou open the popup. on the product page it works

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