Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-09-23T06:48:24","request-id":"61e7a2b2-46f4-443d-9974-228e925787c4","client-request-id":"61e7a2b2-46f4-443d-9974-228e925787c4"}}}"