Dear Sirs!
I'm not sure how to set page 404. There is a Bonus page 404 in demo Hexagon, but I can not find material for it in Joomla. Should I edit directly error.php?
Thank you.
Dear sir,
404 page appears when a link site is not exit or error, You can see it if you open a article, then unpublish this article in admin and refresh it in frontend.