Shopify Schema Markup for Opinions Widget may be rather complicated (as it depends upon the critique applications that you are using), I like to recommend you permit it to your gurus.  Please check the demo instance down below, where by the module is installed and configured in debug mode. It https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-open-graph-twitter-cards-tags-on-all-pages.html