Step 1:
-> First open the Crazy Editor tab from sidebar and click on Site Builder Tab
-> You will see the 404 Page Builder Controller Tab.
-> Click it
-> Create a template and save it to get the editor button.
Step 2:
-> You will get to the editor and see the site builder addons along with the other addons.
-> Create your awesome 404 Page there.
Step 3:
-> Select the 404 template from settings
Result:
Go to your shop and see the awesome 404 page that you have built
