Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-09-10T01:10:54","request-id":"24627004-613a-4434-83b3-53b2889c24cf","client-request-id":"24627004-613a-4434-83b3-53b2889c24cf"}}}"