Below we have listed some questions making it easier for you finding what you believed would be on this page. If non of the tips below works, try our search.
Try contact the owner of the website, and make sure he/she updates the link or removes it if the resource is no longer available.
Try to contact the owner of the website where you found the link, and update them on that they are linking to a non-existing resource, maybe they do not know that. After that, you could contact the owner of this website as mentioned above, in order for him/her to update the content and maybe take contact with the website linking here.
I know this is an annoying tips, but really make sure that you spelled the address correctly. Even the best makes small mistakes sometimes.