" GTM no-script code not found: either lacking or not in " I consider to include the script during the header.tpl but there's no portion. Update: Trouble was solved. I just use One more addon and customize hook to do it. Many thanks Ali Edited November 21, 2018 by QNP https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html