You can replace Learnybox's default 404 error page with a custom one that better matches your branding and message. Here's how to set it up:
Steps to Create a Custom 404 Page
Access Your Website Pages
Navigate to Website & Blog → Website
Open the Pages tab
Create a New Page
Click on Create page
In the Page Name field, enter 404 (exactly as written)
Customize Your 404 Page
Once the page is created, design it as you like using the page editor
This page will now automatically be used in place of the default Learnybox 404 error page
Visitors who land on a non-existent or inaccessible URL will be shown your custom 404 page instead of the default one.