Hello together, maybe someone knows this phenomenon: When I open the tailgate, I can no longer close it via the switches in the tailgate. I only hear that a relay switches but nothing moves. If I sit in the car and operate the switch at the driver’s door to close the trunk, the tailgate only goes half way and stops and the inner light goes out. I also do not get indicated in the display that the tailgate is open while driving. If I open the door again with the switch at the driver’s door and the inside light goes out immediately, as if the tailgate was not open. What’s this about???? Thank you for your help Greeting Buyer77