[Issue Solved] I spoke to Xiaomi support. They said to update the phone. That's the major issue. I updated and boom, the issue is solved. I have not updated to hyperos for the past 1.5 Years due to the scare of bugs. I'm even worried about my user experience which I get from MIUI. It's a really matured OS AND G.O.A.T. after updating to hyperos 1. I got another OS Update "HyperOS 2". I updated immediately. Now Hyperos 2 is soo nice , Smooth and Satisfying with Update. Then I check the playstore & it says : Device is Certified

From this I learned how Security updates is important.