Supervisor not starting on HAOS, but HA and Add Ons are running

Last night my HAOS shut down due to an extended power cut and the UPS nearly ran out (Dell Optiplex mini BTW). When it rebooted I had a “no boot device” found on the screen. I powered off and powered back on, and it started again… however, weirdly i have no Supervisor running. The message on screen is “Error returned from system, supervisor is not ready. state setup” However HA is running as well as the add-ons, even tho i cant see the add ons in the settings menu. Imgur: The magic of the Internet

I have done some checking. And typed “banner” in the cli, plus “supervisor restart” but im still left with the above. Any ideas? Thank you!

Am update here: Same issue as Error returned from Supervisor: System is not ready with state: setup - #62 by keithcroshaw

I restarted HA and all is well for now