I found already a lot of other threads about exact that problem here. But none of the solutions helped me.
I did a “apt-get upgrade” and a “apt-get update”. I rebooted my server. I updated pip2 and pip3. I created a swap file like it was described here (https://certbot.eff.org/docs/install.html#problems-with-python-virtual-environment). No change. I still get this error.
"Certbot has problem setting up the virtual environment.
We were not be able to guess the right solution from your pip
for possible solutions.
You may also find some support resources at https://certbot.eff.org/support/ ."
What should I do?