problem updating the system

Hello Daniel,

I’ve dealt with that before:

But in short:
Run this command: sudo apt autoremove --purge nvidia-driver
thanks to Kevin Chevreuil @Kaisen

As far as the upgrade goes I was also surprised to know that it best happens with:
sudo kaisen-upgrade
and not
sudo apt update && apt upgrade

Even though Kaisen is Debian-based some things are very specific. My guess it’s developers’ choice.