Sorry no but no change. I always had to take it to a garage to clear the error code.
This is what they've told.
The error code is P101B, which comes from the internal battery contactor. To fix this the quick charge side must be replaced including the entire connector. Estimated cost is about 3000 EUR.
That cost is too high and at the same time they didn't offer any warranty for the fix. so they didn't know if it will help or not. Since then I didn't use the Chademo charger. I will try it later cause I still think that this is due to some issue between that specific charger and my car, but then it seems my situation is rare, but not unique.
If your garage will figure something out, then please let me know as well. I'd happy to hear it.