With out hreflang, Google may possibly serve the wrong language Variation to end users – like an English speaker in copyright being proven the French Edition within your page, leading to confusion and a higher bounce rate.  Assessment the teams of duplicates. Choose one canonical Variation that should be indexed https://addons.prestashop.com/en/seo-natural-search-engine-optimization/31857-automatic-google-rich-snippets-json-ld-open-graph-seo.html