Cause: sometimes a site organizer will move a page to another location in the site.

Solution: the best way to find it is to check the menu of that site for it's new location or to type the subject of the page into the search window, usually on the home page of the site.

If an error message comes up and you don't know the way to the home page, remove all of the address in your browser except for root address, e.g. if http://www.jesusfilm.org/film-and-media/watch-the-film fails, type only www.jesusfilm.org.)