The Facebook AddToCart pixel does not work

[AgeOfInnocence]

Hello!
On the client's website https://ru.age-of-innocence.com/ the Facebook AddToCart pixel does not work. We read that this may be due to the fact that a specific basket format is configured on the site - "using an ajax script to keep the visitor on the same page and use the drawer to view the cart". We checked the shopping cart selected in the shopify code, its type is page. What else can affect the performance of the facebook conversion pixel?

[AgeOfInnocence]

Сan anyone help? The AddToCart event's error cause key features of dynamic ads are not be available.