Cannot access my HA instance - 403 error

After updating core a few nights back, I can no longer log in to HA either from local browser, remote browser, or iOS app.

The browser error I get is 403 192.168.4.147 refused to connect.

The iOS app gives a little more information:
Invalid HTTP response (530)

Domain
HomeAssistant.OnboardingAuth-Error

Code
1

I am able to get to the CLI when connected via USB, but I cannot SSH into the box.

It’s been 4-5 days now - all automations continue to run, I just cannot configure anything.