1. On the cPanel homepage, find and click on the "Error Pages" icon.
2. In the opened interface, you will see links with status codes for specific errors that you can customize with your own error pages. To start defining, click on the link with the error code for which you want to set up a custom error page.
3. In the newly opened interface, in the text editor window, enter the HTML code of your custom error page that you want to be displayed.
4. After entering the code of your error page, before saving the data, click on the following buttons:
Referring URL
Visitor's IP address
Server name
Visitors's browser
5. After correctly entering all the necessary data, click the "Save" button to save the changes.