When you add hreflang tags, ensure all of them issue to indexable and crawlable pages. Check which tags are causing the issues and rectify them by making sure the pages they’re pointing to are live.  Módulos patrocinados Descubre nuestra selección de módulos patrocinados para responder a todas tus necesidades From https://dailybookmarkhit.com/story18847266/the-smart-trick-of-hreflang-tags-wordpress-that-no-one-is-discussing