Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-02-07T01:47:08","request-id":"db9e5b2b-1faa-4c0d-acbc-bb913c93698f","client-request-id":"db9e5b2b-1faa-4c0d-acbc-bb913c93698f"}}}"