Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-10-23T20:45:03","request-id":"8b767952-0ebd-41af-8e6a-379cd45b185a","client-request-id":"8b767952-0ebd-41af-8e6a-379cd45b185a"}}}"