<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.artitk.licensefragment">

    <application android:allowBackup="true" />

</manifest>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.artitk.licensefragment">

</manifest>

Remove allowBackup from Library's Manifest
Remove allowBackup from Library's Manifest
