The most common issue users face on these legacy devices today is the "Google Play Services has stopped" error. This is usually because the version of Google Play Services installed on the device is outdated or incompatible with modern app requirements. However, installing the latest version won't work either, as modern versions require newer Android OS versions.
(ARM vs. x86) for your device to ensure you pick the right APK? Google Play services (Android 4.4+) APKs - APKMirror Android 4.4.4 Google Play Services Apk
If you encounter issues with the Google Play Services Apk on Android 4.4.4 KitKat, here are some troubleshooting tips: The most common issue users face on these