You also need to obtain Google Play Services for your device. Almost every Play Store app, including the Google Play Store, uses Google Play Services. Without one, you cannot have the other.

How to download ... non-Google Android devices? The Google Play Store is only half of the equation. You also need to obtain Google Play Services for your device. Almost every Play Store app ...

First, open the app drawer by pressing on the icon app drawer or by swiping ... then you can use it to reinstall again. To download Google Play Store, go for a reliable source like APKMirror.com.