DNS Propagation Issue after deploying latest build

Hello,

My website is netlify-domain. I merged some new changes yesterday. I was trying to test the website’s performance on some platforms like GTMetrix, WebPageTest but I am getting the error, “SSL Certificate being used on this website was issued for another website’s address”. However, my website is loading well on my system and also on PageSpeed Insights. What is the issue?

My custom domain is: https://sjmusichub.com/

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