When you create a page and use WPB social widget sometimes icons don't show on your page and this looks like this:
WPBakery social widgets are connected with Easy Social Share Buttons plugin.
You need to insert links to your social media profiles:
To fix this go to Wp-Admin > Easy Social Share Buttons > Profile Links:
Click on Enable and choose what social profiles you want to use:
For this we only check Facebook. Results: