My data is backed up almost daily. It is a separate operation from Clonezilla.
Just out of curiosity, I also checked dropbox.
Everything is file there.
It seems the only problematic combination is
current Zorin installation + Mega
I wish I know what caused it.
I did not install anything new for last couple of months.
Do you have any idea what might went wrong with my installation?
Zorin + Mega is not working (desktop apps, Firefox and MS Edge)
VM Windows guest on the same machine + Mega is working
Zorin + Dropbox is working
On other machine Mint + Mega is working (i.e., nothing wrong with my Mega account)