Backups still there after deleting DB

I’m confused. I’m running Duplicati on Synology DS218+. Did some experimenting and now I wanted to do clean restart, uninstalled the package and deleted /root/.config/Duplicati folder (with Duplicati-server.sqlite and the other DBs).
When re-installing I still have the old backups. And the newly generated Duplicati-server.sqlite seems to be empty.
is there a copy of the server DB that is used? Or is there a config file?

If you’re running Duplicati under an other user than root then the DB will be in that users config folder.

There are not any backup configurations stored outside the Duplicati DB.