If you add hreflang tags, ensure they all position to indexable and crawlable pages. Check which tags are causing the issues and rectify them by ensuring that the pages they’re pointing to are Reside.  Canonical URLs are utilized to stay away from copy written content and show to search engines https://addons.prestashop.com/nl/seo-zoekmachineoptimalisatie-vermelding/31857-automatische-google-rich-snippets-json-ld-opengraph-seo.html