Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-06-23T00:36:35","request-id":"537d49c1-c7c5-45d1-9c56-a1ee6ba3d62b","client-request-id":"537d49c1-c7c5-45d1-9c56-a1ee6ba3d62b"}}}"