After you include hreflang tags, guarantee all of them place to indexable and crawlable pages. Verify which tags are causing the issues and rectify them by ensuring the pages they’re pointing to are Stay.  Rel=canonical should only seem within the of a document. A canonical tag in the part of https://bookmarkwuzz.com/story18764447/helping-the-others-realize-the-advantages-of-hreflang-canonical