Hi folks,

I think I finally solved my issue but I am not exactly sure what did the trick in the end.
The salvage command somehow did not work. Idk why but I can't find it in the core installation as an option or anywhere else... but that's me not looking at the right places I guess.

So I tried back and forth with pywallet and the recover option.
I think the origin of my trouble was a faulty python installation.
So after reinstalling it finally worked.

I did a reinstall of the bitcoin core too, since that crashed from time to time.

Anyway, now everything works fine. I can acces the priv key of the wallet and all looks actually good

So thank you all again a lot for helping me.
I actually did learn a lot

Best regards

cc