Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-10-28T23:42:59","request-id":"7666b6d0-f747-43d1-983c-9c15148f32b5","client-request-id":"7666b6d0-f747-43d1-983c-9c15148f32b5"}}}"