Polylang Language Support

What parts are not working? If the parts that are not working are only what are described in this article: https://mtekk.us/archives/wordpress/plugins-wordpress/breadcrumb-navxt-and-wpml-compatibility/ as requiring the help of an extension plugin then something can be done. However, if other things are not working, it is likely due to a ‘deficiency’ in the Polylang Language plugin.