Occasionally, you might accidentally noindex a number of alternate pages you’ve referenced within your hreflang tags. When this occurs, search engines like google won’t follow the tag on the website page and won’t follow the return link on the site that references the choice versions.  The JS redirect seems like https://www.presta-addons-modules.com/en/opencart-seo-automatic-google-rich-snippets-json-ld-integration-opengraph-twitter-tags-schemaorg.html