Hi , I am not able to post the link here my website name is www.thesleepcompany.in

You will get the blog link in the footer

Recently I have shifted my website from WordPress to Shopify. So far my blog is WordPress and it was a subdirectory

But after shifting the site from WordPress to Shopify we kept our blog in a subdomain in WordPress itself The issue now is all my ranking went down, and none of the blogs is ranking.

What might be the issue, is there any solution