By default ImpressPages CMS shows error 404 page with possible reason of it. To configure ImpressPages CMS error 404 behavior, please open administration panel, and go to Developer -> Modues Config -> Configuration -> Error 404.

Here you can:

• change appearing texts;
• setup error 404 reporting via e-mail;
• setup redirect to main page.

If you found this page while looking why all your links result in error 404, please visit "links don't work" page.