You'd have to say more -- are you saying you're not getting a PDF on import? In that case we'd need a URL (also, that doesn't seem 'crushing' to me?)

The web page from which you are trying to obtain the PDF. What is its URL?

https://kns.cnki.net/kcms2/article/abstract?v=3uoqIhG8C44YLTlOAiTRKu87-SJxoEJuRb7uKjnNzo-wfqbiJ1dVv7XZjvhwV-m4YxXVLwxOR4HxiJzG28mK71ifODZamW9i&uniplatform=NZKPT