Invalid API key at Vercel Login

[Virtual-Educator]

I can't get past the login screen. No problems locally but If I try to sign up or log in to the hosted Vercel version, it pops up "Invalid API key." Any help would be very much appreciated.

[Virtual-Educator]

SOLVED. In Supabase, I needed to set the following under Authentication>>URL Configuration:
Site URL: [https://[app-name].vercel.app/
add a Redirect URL: https://[app-name].vercel.app/auth/callback