Problem at startup

Hello dear community, I now have a problem with my car for the second time. At the end of September 23 he didn’t get started, then I called the ADAC and he identified the problem as an error in the anti-theft device. According to his statement, he kept the “Close” button pressed from the remote control and drove around with it close to the steering wheel. After that, the car started. Unfortunately, I didn’t see that because I was exactly there to get the spare key. Now I’ve got r exactly the same problem and I tried it that way, but it doesn’t work. The car has power and sounds like it’s going to start, but then suddenly it’s strangled. Does any of you have experience with it, or should I call ADAC?