https://github.com/H2-invent/open-datenschutzcenter
https://open-datenschutzcenter.de/
Granted, this app may not affect a large amount of users, but it is a software that can make life immensely easier if you are responsible for or have to manage data protection (DSGVO / GDPR) in companies or organizations/assosiations.
"solved" - but I don't know for sure the exact reason that caused this. I set up a new server with both: IPv4 and IPv6.
So best explanation/guess: the installation only works if there is also an IPv4
Located the problem: it's something about the password length. Tested it with different length with a shorter password it works now
@nebulon That worked. I had to re-enter my settings/variables, but that's better than an empty file 
Thanks to you
