" GTM no-script code not found: both missing or not in " I test to include the script within the header.tpl but there is no part. Update: Difficulty was solved. I just use One more addon and customize hook to make it happen. Thanks Ali Edited November 21, 2018 by https://addons.prestashop.com/pt/seo-referenciamento-natural/30904-tags-automaticas-hreflang-e-tags-canonicas-seo.html