Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-10-13T10:27:34","request-id":"c18f690f-0d24-48a2-8097-91bd279545d2","client-request-id":"c18f690f-0d24-48a2-8097-91bd279545d2"}}}"