To add to what @BrutalBirdie said, Cloudron is designed for hosting apps (and not databases as such). This means that you can't create databases separately and there is no UI to create/delete databases. It's designed for hosting your app which needs a database. The database is provisioned and updated as needed transparently as part of the app install/update/uninstall process. Very similar to heroku.
Just wanted to point that out, because Cloudron is not a classic style server management panel where one can manage "databases".