@ownedbycats: That says that the database was corrupted somehow. And corrupted badly enough that the device could not use it. That triggered setup to be done. After that, it should have imported all the sideloaded books.
Restoring the last good backup and restarting the device after disconnecting should fix it. You will need to connect to the PC to trigger importing any books not on the device when the backup was taken. And then sort out your reading status.
|