Unable to connect to Supabase.

Please check the following:

• Verify that NEXT_PUBLIC_SUPABASE_URL is a valid URL (should start with https://)
• Verify that NEXT_PUBLIC_SUPABASE_ANON_KEY is set correctly
• Check if your browser has any extensions that might be blocking the connection
• Try clearing your browser cache and cookies
• Check the browser console for more detailed error messages

If you're using Vercel, make sure these environment variables are set in your project settings.