That's why I replaced the screen and BT module with one that should enable streaming. After replacing the modules, everything works, so someone had already disabled the MOST lock. There was a Polish screen with the inscription D5T5, so I assume that someone had already tampered with the car.
I understand that VDASH does not have the PIN for my car, even though I think the PIN had already been extracted earlier. I will see if it is possible to extract the PIN using the AI method, but as mentioned earlier, I have to do it during business hours, i.e. Monday to Friday.