Error opening file 2022

Hi, I’am trying to open a file but appears this message: error opening file .
I ask to a friend to try to open it but it says the same thing.
this is the file:

Untitled Project 5-[AutoSave].dorico (76.9 KB)

Thanks a lot in advance if anyone could help me!

Unfortunately that project file is incomplete and unrecoverable. Please take a look inside the Backup Projects folder inside your Dorico Projects folder in your documents folder: you should (I hope) find a recent backup in there.

I’ve searched anywhere but no luck.
Thanks anyway!