Every time I add books to my Calibre library, I back it up to a zip file and store it on Google Drive.
A few months ago, I deleted my library to free up space. Today, I downloaded the zip file, unzipped it into the Calibre Library folder and started up Calibre. However, Calibre is showing 0 books. When I try to manually load the library from the appropriate folder, I get the message shown at this link (loading it as an IMG didn't work).
https://drive.google.com/file/d/12MH...ew?usp=sharing
What am I missing? Why isn't my library loading?