

Clear up some space first and then try something like this:
dpkg --force-all --configure -a
apt --fix-broken install
apt-get -f install
I’ve had issues like that before and oftentimes it’s recoverable. A bit unfortunately if the wrong packages got damaged. Can be quite an effort to get it going again and it depends on the exact situation.




Hmm, sorry. I’d guess your internet connection doesn’t work any more. So apt can’t fetch the packages. That’s kind of hard to debug, though. You’d somehow need to fix networking before you can proceed. But we don’t really know what broke. And if that’s really the only issue at play.
Maybe a Live-USB stick and a rescue mode can help here?! Other than that I’m out of options.