Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2025-12-20T17:55:55","request-id":"6929a682-d8c2-45ba-8bc7-343debf139c3","client-request-id":"6929a682-d8c2-45ba-8bc7-343debf139c3"}}}"