Openhab Console - not possible to set password of user openhab

[hmerk (Hans-Jörg Merk)]

Seems you are not able to login to the UI, so the following link will help:

Openhab3 forgot password

If you simply delete userdata/jsondb/users.json and also all the related backups in userdata/jsondb/backups (while openHAB is not running) and restart it should offer you to recreate the first admin account.