Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-10-21T16:32:12","request-id":"9d634932-f058-431c-b45e-24537843a9cc","client-request-id":"9d634932-f058-431c-b45e-24537843a9cc"}}}"