It looks like window.SUPABASE_URL / window.SUPABASE_ANON_KEY are not configured, so data can’t load.
Create /config/app-config.js with:
window.SUPABASE_URL = "https://uuggrsmvqpmeooyobyxz.supabase.co";
window.SUPABASE_ANON_KEY = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6InV1Z2dyc212cXBtZW9veW9ieXh6Iiwicm9sZSI6ImFub24iLCJpYXQiOjE3NTU1MTMwMTIsImV4cCI6MjA3MTA4OTAxMn0.1xTpckat0ekO9nBH5tdQMbQMyBIEFBowspy2q53yKhI" name="supabase-key";