Problem with a clean install on Ubuntu 20.4.3

Hello, I take a fresh install on an Ubuntu server 20.4.3 all updates take.
I take this two manuals to install dockers and bitwarden

Dockers: LXC Docker -
Bitwarden: Bitwarden -

Now I can see the login screen. When I want to registrate the admin (first user)
I get this Error “An unhandled server error has occurred.”

How Can I resolve this Error.


I have the same problem.
Do you already have a solution?

I have found no solution for this problem.
I have an temporary solution on a Raspi 4

I keep searching

Try the following commands.

sudo apt-get install python3-setuptools
sudo python3 -m easy_install install pip
python3 -m pip --version