Incorrect canonical implementation: Be sure that the canonical URL is proper and will not conflict with hreflang directives. PrestaShop also makes it possible for consumers to set up unique Hreflang tags and Canonical tags for different languages, which is particularly useful for multilingual e-commerce web-sites. Around the left, the thing https://addons.prestashop.com/nl/seo-zoekmachineoptimalisatie-vermelding/30904-automatische-hreflang-tags-en-canonieke-tags-seo.html