If you are experiencing the following error:
ReferenceError: VideoBackgroundPro is not defined
It means that the plugins main script is not being loaded. This can happen when using optimizing plugins, or caching plugins.
If you are using Autoptimize, and you are experiencing the
ReferenceError message in the console, you may need to exclude the Video Background Pro scripts from Autoptimize.
WordPress Admin > Settings > Autoptimize, and find the
Exclude scripts from Autoptimize input field. You should see something like this in the field:
wp-includes/js/dist/, wp-includes/js/tinymce/, js/jquery/jquery.js
You'll want to include the
VideoBackgroundPro.js script in the field. Update the field to:
wp-includes/js/dist/, wp-includes/js/tinymce/, js/jquery/jquery.js, wp-content/plugins/video-background-pro/dist/VideoBackgroundPro.js
Finally, be sure to click the button at the bottom
Save Changes and Empty Cache