Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-01-09T07:13:20","request-id":"195fed4c-78c0-4ca1-a49a-605a998dd7c1","client-request-id":"195fed4c-78c0-4ca1-a49a-605a998dd7c1"}}}"