Google-selected canonical is my original site rather than my multilingual site!
I built a website
www.example.com, then I made it a multilingual site, with an "en" at the end. (original website still exists!)
Google didn't index my multilingual website: domain end with en or with en/。 And when I inspect this page
www.example.com/en on Google Search Console, I find that Google-selected canonical is my original website
What should I deal with it? Add a canonical tag to my "en" page? Another question is what should I deal with
www.example.com/en/ pages, they are all not indexed by Google. GSC also shows a "Duplicate without user-selected canonical" error for these two pages, and both of them have referring pages on my website.
www.example.com/en/ pages have hreflang tags, but they don't have any canonical tags.