You need to use canonical tags to point the primary version of the webpage to engines like google. A lot of hreflang problems come from using canonical tags and hreflang attributes jointly incorrectly. It is best to use canonical tags whenever you have the very same or equivalent articles obtainable https://addons.prestashop.com/pt/seo-referenciamento-natural/31857-rich-snippets-automaticos-json-ld-opengraph-seo.html