Hello,
Do you have this problem only with our theme or even when a default WC theme – Storefront activated on your site?
You use a lot of different plugins, try to disable all 3-rd party plugins > clear cache and check site one more time.
Also, you may see this as result of testing your site http://prntscr.com/hz0357, so check your robots.txt file (these articles can be useful https://www.ostraining.com/blog/general/google-mobile-robots/ https://mor10.com/robots-txt-might-be-ruining-your-mobile-friendly-ranking-with-google/ ).
Regards