NB: Customize 404 page is available only with Attesa PRO plugin.
This option allows you to customize page 404 of your website (page not found).
To use this feature, go in your WordPress Dashboard under “Appearance-> Customize-> Attesa Theme Options-> Custom 404 page“.
From this screen you can customize the title of 404 page, insert a featured image, a custom text, and choose to show the search form, a list of recent posts, archives and tags.