Firestore Data Manager error: Could not create account as firebase@flutterflow.io

[dentstd7018-lgtm]

Can we access your project?

• I give permission for members of the FlutterFlow team to access and test my project for the sole purpose of investigating this issue.

Current Behavior

When trying to access or add documents using the Firestore Data Manager, an error message pops up saying:
"Could not create an account as firebase@flutterflow.io to your Firebase project. Make sure 'Email Sign-In' is turned on for your Firebase project, and try again."

Even though Email/Password authentication is already ENABLED in Firebase Console, and config files have been regenerated multiple times, the Data Manager fails to connect.

Expected Behavior

The Firestore Data Manager should successfully connect to the Firebase project and allow creating/managing Firestore documents without authentication errors.

Steps to Reproduce

1. Open the project cecapp-9n7g0c in FlutterFlow.
2. Go to the Database / Firestore tab.
3. Click on "Manage Content" or open "Firestore Data Manager".
4. Select any collection (e.g., Events).
5. Try to view or click "+ Add Document".
6. The error regarding firebase@flutterflow.io appears on the screen.

Reproducible from Blank

• The steps to reproduce above start from a blank project.

Bug Report Code (Required)

1. Open the project cecapp-9n7g0c in FlutterFlow. 2. Go to the Database / Firestore tab. 3. Click on "Manage Content" or open "Firestore Data Manager". 4. Select any collection (e.g., Events). 5. Try to view or click "+ Add Document". 6. The error regarding firebase@flutterflow.io appears on the screen.

Visual documentation

Environment

- Platform: Web (Chrome Browser)
- Operating System: Windows
- Project ID: cecapp-9n7g0c

Additional Information

This issue is blocking our development process as we are unable to manually test or manage Firestore content and user registrations for our university app project (CEC APP).