Could not reach Cloud Firestore backend

[parrycj]

After switching from the Firebase realtime database to Firestore, I'm coming across the following error when I press the Sign Up button:

@firebase/firestore: Firestore (7.2.3): Could not reach Cloud Firestore backend. Backend didn't respond within 10 seconds.

This typically indicates that your device does not have a healthy Internet connection at the moment. The client will operate in offline mode until it is able to successfully connect to the backend.

My Firestore rules are as follows:

  match /databases/{database}/documents {
    match /{document=**} {
      allow read, write: if true;
    }
  }
}

I'm wondering if the .env DATABASE_URL should be different now that I'm not using the realtime database anymore?