Why failed because of disk space?

That might work for a single file, but reports have been made of database recreation taking months. You’re fine until you lose the database, then life gets much slower. A direct restore is a faster way to get something back…

Does it make sense to backup Duplicati config and db files? is a recent discussion about options to relieve that. There’s also some rework in the recreate code, and I’ve also just documented one way the recreate grows slow.