Fix unknown bug (Self-written marketplace in PHP)

https://vse-okna.online Website
On the main screen there is a parameter input and a button "find out the cost" which when you click redirect to the authorization page
Everything works well, but for some users who have switched from Yandex.direct advertising (links with atm tags) when you click on the button - nothing happens.
It is necessary to track the cause of the error, give advice why this happens and you need to correct this error.

Access to the metric to view the web view of these cases - I will provide
Offer a price