When you choose Google rich snippet or Schema.org example, you must overwrite test input information with your own.You can include or remove fields/Attributes that you don't use. Please feel free to contact me for almost any support in installation, configuration, and customization within the module According to your store needs. https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html