They didn't put all the ordered products in the bag, mixed up everything they could, I found out at home.
Update: Thanks to the restaurant GM Marko for solving this problem.
Clean, delicious. The order of a drink + potatoes + burger + legs was collected for 10 minutes, but the beverage container is given out immediately, drinks can be refilled for free as many times as you want.
The order can be collected at the self-service terminal (English is available), but you will still have to pay at the checkout. But the cashiers are pleasant and at least one of them even speaks a little Russian.