apt get - E: The repository 'http://ppa.launchpad.net/certbot/certbot/ubuntu focal Release' does not have a Release file

Question

Since i installed certbot on Debian 10, it always shows this error:

root@HypeTime:/home/sinusbot# apt update
Hit:1 http://security.debian.org/debian-security buster/updates InRelease
Hit:2 http://deb.debian.org/debian buster InRelease
Hit:3 http://deb.debian.org/debian buster-updates InRelease
Ign:4 http://ppa.launchpad.net/certbot/certbot/ubuntu focal InRelease
Err:5 http://ppa.launchpad.net/certbot/certbot/ubuntu focal Release
  404  Not Found [IP: 2001:67c:1560:8008::15 80]
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/certbot/certbot/ubuntu focal Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Does someone know how to fix this error?

question from:https://stackoverflow.com/questions/60249177/e-the-repository-http-ppa-launchpad-net-certbot-certbot-ubuntu-focal-release

Answer 1

I got rid of the error message on Ubuntu 20.04 by removing the ppa repository. It took me a long time to find out the exact command argument, so this might help others :-). I used the command:

sudo apt-add-repository -r ppa:certbot/certbot

After that, the following commands do not generate any errors:

sudo apt update
sudo apt-get update