WooCommerce shop add to cart button showing an errpr

Hello!

I recently did an Elementor and PHP update to my webpage. After that the shop stopped working. From customer view It shoes an error message after pushing add to cart. From admin view i can add to cart but the payment method section is just loading. I tried removing all plugins and it started working when I removed Elelementor. What do i do next.

Also i changed the theme to storefront but online the landing page and some other pages too changed, everything else is still looking like the old version of the store.

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