If you insert hreflang tags, be certain all of them stage to indexable and crawlable pages. Check out which tags are causing the issues and rectify them by making certain the pages they’re pointing to are Are living.  The JS redirect looks like a little a messy situation, but to https://socialmarkz.com/story9178745/the-greatest-guide-to-automatische-hreflang-tags-en-canonieke-tags-seo