Had a rather good day again at the Ring yesterday. However, I did something stupid. At a moment, I thought the engine died... I could turn it on again, and drive calm to the Breidscheid exit, and then back to the entrance of the Nordschleife.
When investigating the problem, I noticed that the (don't know the word in English...) tool that looks like a cross, and is used to tighten the wheel nuts, was loose in the trunk. Every now and then, it made a short circuit on my battery
Now I attached that tool to the inner side of the spare wheel, issue solved...
46 laps and counting. Well, 46 and a half