The basket is not cleared after paying through the robokassa. What could be the reason?

Question

PHP

On opencart, the basket is not cleared after you pay for the goods through Robokassa. At the same time, the status of the order becomes completed and the payment, in principle, is successful. But the basket remains. Has anyone met with such a problem?

Answer 1

Find the controller and check the steps. Specifically, the place where the status of the order changes.