Which means that you've got unparsable structured info concern, and parsers can not read through schema markup, so make certain your schema markup syntax is proper, Here are several actions to check when troubleshooting: Regularly monitoring rich snippet performance as a result of applications like Google Search Console and examining https://addons.prestashop.com/fr/seo-referencement-naturel/31857-seo-automatique-google-rich-snippets-json-ld-open-graph.html