roland.hafner@yahoo.com, during the create flow the password was made available to copy from screen or download locally.

If you did neither of these, then we currently don't have a way to reset this database, though we have a feature request open here that you can vote on : https://neo4j-aura.canny.io/auradb/p/allow-change-password-in-aura-console

To resolve your issue near term, you can take an export of any data in the UI and download it, and then create a new instance (deleting the old one first).

John