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#pro…

Certbot has problem setting up the virtual environment

JuergenAuer June 7, 2019, 2:35pm 7

there are a lot of threads with that problem.

Please check