Modern versions of the Google Play Store (v30.0+) require newer Android system files. Installing these on Android 4.4.2 often results in "Unfortunately, Google Play Store has stopped" errors. You need a legacy version (typically around v5.0 to v6.0) that was built specifically for KitKat.
Download a legacy APK version (v5.x or v6.x). google play store apk android 4.4 2 download
If you are on Android 4.4.2, you cannot run the latest Play Store version (v40+). It will crash. You need to install a legacy build. Modern versions of the Google Play Store (v30
I recommend downloading or 6.0.5 .