Thanks for your suggestion, @jayeff ! But I already tried to update Google play store app but it does not work for me. While searching the web, I followed MegeByte advice and try to remove Google Account and reconfigure it again, and luckily it works for me.
I had the same issue with my Google home. But after updating my home address, its work like a charm. Update your as well: Open the Google Home app on your Smartphone → Tap on the hamburger → More settings → Google Account settings → Update Personal info. If this solution does not work for you, then try some other fixes to solve Google Home not responding problem.