By shut down automaticaly I meant, that it looked like this:
[image: 1640539246440-bildschirmfoto_2021-12-26_18-15-06.png]
But as I noticed now, that was, because I forgot to do a Reload after changing to Python Mode.
I now was able to get pfBlockerNG-devel runing as it should in the virtualbox, so everything is good so far.