The link you followed will bring you to this page:

https://www.davosklostersmountains.ch/de/mountains/gastro-events/restaurants-bars/bistro-national?fbclid=PAZXh0bgNhZW0CMTEAAaaCcP1pBGTm0Tdu_Awgz4h0TSGj7zS15vGuvYA3ye8WwTt6Y7Jyqh6USks_aem_B28LmU3b7y4LlTTsxSL-RQ