I don't know why but my Ubuntu session got stuck at the login page suddenly and I can't get through any further. When starting the VM, I get the following screen :

I've tried CTRL+ALT+F1 and CTRL+ALT+F7 but no luck... My keyboard and mouse aren't working.
I've also tried CTRL+ALT+F3 and ran
sudo apt install --reinstall ubuntu-desktop
sudo apt install --reinstall ubuntu-session
but still the same.
[![Sign in screen.]](../../images/c2bc25a2f3150bf699fc6aec29bf6006.webp)
I'm wondering what's wrong and what I can do. If ever it is not possible to recover my session, is there a way to create another VM with the disk of this one... I'd hate to lose everything.
