Password for .skg file requested after 25.1.0 update

I am running Skrooge on Linux Mint. After a recent update I am being prompted for a password to the .skg file even thought it was not previously password protected. I am no longer able to use Skrooge.

I tried downgrading to 2.33 then to 2.27 but I am still being prompted. No longer able to use my data.

Is there a way to recover from this? - update. I used Timeshift to go back to the 12th and now I am again able to access my data with no password prompt.

As far as I know I would be prompted for a password even if I had Skrooge set to auto open the last database.

You can have this kind of error when the skrooge is not able to open the file.

Could you check that the file size seems to be correct ?
Could you try to restore the previous save by removing the .old extension to the backup file ?