If your web hosting provide is using Cpanel as their control panel. You can setup your own custom error pages from within the control panel. To setup your own custom error pages. Login to your web host’s Cpanel control panel and go to the “Advanced” section and click on “Error Pages”.
Now you should see at least five error pages shown. If you click on any of the error pages shown you should be able to put your own custom error message for the respective error pages. Make sure to click on “Save” at the bottom to save the changes that you have made.
Step 1. Locate the “Error Pages” button and click on it.
Step 2. Click on the error page you want to edit to begin editing. Make sure to press the “Save” button at the bottom of the error page that you are editing to save it.