As we can see, there a few 404 errors from WPBakery and it looks like some files were missed. Try to uninstall the plugin and install it from scratch via Appearance -> Install plugins.
Sorry, but we don’t keep all WPBakery page builder versions and have the latest version only. But it is not a new bug in the plugin. Try to remove the element that uses the outdated Lightbox library. Or replace it with our theme Image gallery element.