Figma Make experiencing sudden loss of connection to Supabase DB

My Make prototype was working fine today until about an hour ago (around 1:20pm MST). It seems all API calls to my Supabase db are now failing. I’m seeing this in my browser console:

Failed to load resource: net::ERR_CERT_AUTHORITY_INVALID

followed by a 

TypeError: Failed to fetch

Nothing has been updated or changed in my db for the past 24hrs. I’m seeing traffic come through in Supabase logs but my frontend isn’t connecting. Please help, this is URGENT!