I got the plugin loaded. But when I try to run it, I get this message:
“Calibre, version 9.9.0. ERROR: Decryption Failed: An error occurred while decrypting MY BOOK.azw3: An unknown error occurred. Please try restarting the app. If the issue continues, contact support with more details.”
I did restart Calibre and tried it again, but I got the same error.