Plugins WPBakery Page Builder Settings
August 14, 2019, 1:04 PMWordPress 5.x use Gutenberg as a default editor. We would recommend to disable the Gutenberg editor and use WPBakery page builder as the page editor because it’s more advanced.

Read more in documentation of the plugin - https://kb.wpbakery.com/
Do not forget to enable Custom Post types

Video tutorials you can find here.
Note:
We would recommend using Backend editor.