Why is the Page builder add-on deprecated?
The Page Builder Add-On has been deprecated in Debutify Theme 4.0 because of the Shopify Online store 2.0 update.
One of the key features is that you can now add sections to any of the pages of your store, not just the homepage. If you have the Page builder add-on enabled in an earlier version of the Debutify theme, you will get notified that the add-on is deprecated in Debutify 4.0 themes because you no longer need the add-on given the update.