Upgrading a sandbox only changes pointer to distro. Do you have the logs from booting the upgraded sandbox? Also, which XP version did you use previously?
Unfortunately, the problem was from my side
Every time I tried to update the cli, it gave me this message
snap “enonic” has no updates available
Then when I searched I found this page
I ran this command and this happened
sudo rm -r $HOME/.enonic && sudo snap refresh enonic && enonic -v
This command deletes both sandboxes, cli and distros…. I assume you have no backups of your computer, or something in the trashcan?