Thx egtrev. I got the same error and ran your solution and it works perfect.
I had this 0 byte dblock because of an webdav smb share with a bad connection.
It would be great to have an option in Duplicati called “Allways repair 0 bytes dblock files after backup”.
That should do the following:
- backed up the database,
- ran a “Recreate (Delete and repair)” on the database
- delete the 0 byte dblock files
- run purge broken files
- without:
- Commandline arguments
- exclude
- without:
- run the backup one time again