Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2025-12-20T16:02:59","request-id":"8d38cc4a-4d5b-445b-a552-f8700e1586c2","client-request-id":"8d38cc4a-4d5b-445b-a552-f8700e1586c2"}}}"