Peugeot 407 Automatic is stuck in P and does not start (display shows – )

Good day to everyone. I recently bought a Peugeot 407 Platinum with 2.7 liter V6 Bi Turbo and automatic. Engine has 150KW. Engine runs, when it runs, very well, the turbo ́s chirping cheerfully and he drives like a dream. BUT after a certain time he beeps briefly, then goes out and the display shows instead of P or D and so on at once only one – or also German a stroke. Then he doesn ́t go on or the starter doesn ́t spin anymore. because of the automatic he has a lock relay that he can only be started in P. If this happens and I put it in P, however, nothing changes on the display, at – and starter still does nothing. Apart from that, this happens even when he stands on P. So beeps, shows – and goes out. If this has happened and the lever is on P or I put it back on P to start, he also stops and then can’t move. The previous owner has then always few ma l hit the control unit in the engine compartment and at some point the display showed P again and then it can be started completely normal again. Absolutely crazy. I type on a wobble contact or a faulty relay. Unfortunately, some relays are soldered but that would be no problem. I have soldering irons. Nevertheless, the question remains: 1. Why is the lever stuck when the display shows one? 2. Why doesn’t it start any more? 3. Is there anyone else? I hope one of you knows the phenomane and can give me a little more help or tips. PS: In the appendix, the diagnostic report from the tester Or here, the direct link to the report:https://usait.x431.com/…/+1