Comment 4 for bug 1957199

I'm afraid I can't walk you through resolving a broken upgrade in a bug report, it's just not the best medium for the job. Nor can I see a troubleshooting guide that I can recommend.

The process is that you need to complete the apt upgrade. Usually this involves something like:

# dpkg --configure -a
# apt-get -f install
# apt-get upgrade
# apt-get dist-upgrade

And fix any issues a long the way, until you can get things to complete. In the example above, removing or upgrading eric would probably allow python 3.8 to configure.

If you're out of your depth, I'd recommend taking a backup and re-installing.