Why is the add to cart button not working?

Question

1C-Bitrix

Hello. I have 2 pages with exactly the same components.
catalog section. The page displays a product that has an add to cart button.
On one page it works, on the other it doesn't. The console is empty.
Here I found the difference
joxi.ru/brRgRB4FQ7l4lm - working
joxi.ru/Dr8akD8UkoOpNm - not working
That is, it does not refer to core.js, how can this be and why, tell me. Components ctrl+c - ctrl+v.

Answer 1

Well, and where is the code of the button, the component?