I tried to add a ppa to control the heat issues of Ubuntu 20.04 but it threw an error. So I then tried to remove it, which again throws the same error.
$ sudo ppa-purge ppa:webupd8team/unstable
Updating packages lists
E: The repository 'http://ppa.launchpad.net/webupd8team/unstable/ubuntu focal Release' does not have a Release file.
Warning: apt-get update failed for some reason
How do I get rid of it?
