It could point to your oversight or issue since the last crawl. Remember that the declared canonical need to be the Variation of your webpage you desire Google to index and rank. If you're using a CMS like WordPress, Joomla, or another System, there in many cases are settings or plugins https://yoursocialpeople.com/story4170612/tag-hreflang-automatici-e-tag-canonici-seo-an-overview