Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-01-25T21:16:07","request-id":"675a47ca-7ce4-48ad-a10b-4ef8b8b31d4d","client-request-id":"675a47ca-7ce4-48ad-a10b-4ef8b8b31d4d"}}}"