Page not found (404)

Request Method: GET
Request URL: http://sepandteb.com/articles/%25D8%25B9%25DA%25A9%25D8%25B3-%25D9%2587%25D8%25A7%25DB%258C-%25D8%25AC%25D8%25B1%25D8%25A7%25D8%25AD%25DB%258C-%25D9%25BE%25D9%2584%25D8%25A7%25D8%25B3%25D8%25AA%25DB%258C%25DA%25A9-%25D8%25A8%25D8%25AF%25D9%2586/
Raised by: sepand.views.article_detail

No Article matches the given query.

You're seeing this error because you have DEBUG = True in your Django settings file. Change that to False, and Django will display a standard 404 page.