So I think this is related to the site's security. Sci-Hub has a lot of different links, typically some will be up and some down. It's best to copy the article's DOI into Sci-Hub and it should have full functionality. That's why I was saying linking the Sci-Hub I'm using isn't ideal. But if you really want to access peer reviewed science that's how you do it for free. I can't do it for you though.