I had mistakenly uninstalled the stock Play Store on my rooted Lava Iris X1 Mini running Android 4.4. I reinstalled it as a system app after downloading the apk from an external site. Now, I cannot download any apps from the store, because as soon as the download starts, play store crashes. It doesn't even work when it's installed as a user app. Clearing data and cache of Google Play Services also doesn't fix the problem. Any way to prevent this problem? Thanks in advance.