S9 login issue on Brian OS+

I ran into this while trying to log in. Ubus error: Command failed: Permission denied. Could my password or login be incorrect?

Yes possible if the error only came up after you type your login and password credentials. If you forgot the right login password you can reflash the unit through SD card flashing and setup the unit again. Or reset it by following this method below and other methods to reset your unit to factory default. - https://docs.braiins.com/os/20.04/open-source-en/Setup/2_advanced.html#sd-factory-reset