From the "Users" administration panel, you can modify any existing users or create new ones. You can modify the roles that any given user are a part of, and force a password change in the event the user has forgotten their password.
To manage users, users must be in a role that has the "Administer Users" permission globally.
If you have lost the password to log into an account, but still have access to the SSH terminal for the server, you can execute the following command to generate a new random password for an account in the system.
Replace YOUREMAILADDRESS with the e-mail address whose password you intend to reset.
Docker:
./docker.sh cli azuracast:account:reset-password YOUREMAILADDRESS
Ansible:
php /var/azuracast/www/bin/console azuracast:account:reset-password YOUREMAILADDRESS