Why doesn't the PAY button appear in Cloudpayment?

Question

1C-Bitrix

Good afternoon.
When I click on the PLACE ORDER button, I don’t get the PAY button in cloudpayments, in other payment systems it displays such as QIWI. You have to buy through the user's personal account where there are current orders - there the payment is successfully carried out and a notification is sent to the mail. But after payment, the status of the current order does not change to PAID, but the same status remains.
If you have a short video on setting up cloudpayments in Bitrix or articles. With other payment systems there were no such setup problems.
It has already taken about 4 hours.

Answer 1

https://www.youtube.com/watch?v=vTNhWr-ohaY - I found a video on setting up clouypayments and an answer from support:
There is a void in the block where the button and the script to call the widget should appear, the screenshot is attached (66 .jpg)
It should be like in the screenshot 55.jpg
The problem was on my side since I used the penultimate version of sale.order.ajax in php - in the confirm.php file.
After I copied the code from confirm.php - sale.order.ajax - from the new js version - and combined it with the old one. And everything works great.