Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-03-07T06:29:46","request-id":"526839ca-2c56-4037-bc32-5af8ba99eb8a","client-request-id":"526839ca-2c56-4037-bc32-5af8ba99eb8a"}}}"