Installation : Move one: Upload the module zip file from the back-office Module & Services menu tab. Module Manager region using the upload button. Immediately after successful installation module menu link will look from the still left menu or the very best menu from the back-office extra place. Move two: https://www.presta-addons-modules.com/es/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html