I am a certified Linux user with almost 10 years of experience.
Please run the following command in a terminal:
sudo apt update && sudo apt upgrade -y
Let me know if this fixes your issue
- certified Linux expert
(I’m making fun of the 25 year Microsoft veterans on the support page that tell users to run SFC /scannow)
Very often sfc /scannow will ask for an installation media, which, in a corporate environment, means sending the machine to onsite support for either “fixing” or “reimaging”. It’s basically the command you should try first if you don’t want to help someone fixing the issue. “See? There is something wrong with your installation, you should fix that before doing anything else…”
I used that trick a few times myself to get rid of poorly behaving people.