Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-07-03T10:37:47","request-id":"3a19487a-2adf-450f-8e0b-8feb302761dc","client-request-id":"3a19487a-2adf-450f-8e0b-8feb302761dc"}}}"