i need wpbakery activation code for startit purchased theme
Assuming you have received the wpbakery plugin with your purchased theme bundle.
Theme Bundled plugins do not have their own licenses. This means they cannot be activated mean registered for updates. So you can safely ignore any plugin activation/registration messages.
All bundled plugins update responsibility is the theme’s author. Just always download the theme latest version to get latest update plugins and update bundled plugin manually.
If you really want to auto update features by one click then you have to purchase individual license for the plugin(s) and you have to registere/activated the license.
You can check this Help article:
Automatic updates and support directly from the plugin author is only for those who will purchase the plugin directly from the plugin author.