Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-10-11T08:41:49","request-id":"fa66dc2c-dc78-4855-b603-c096cb53389b","client-request-id":"fa66dc2c-dc78-4855-b603-c096cb53389b"}}}"