Name: Device NULL
The bug occurs when the parent removed the current app completed on the target device (their child 's device - it is an Android phone/tablet) and then install the same version (APK file at https://android.thetruthspy.com) again. They will see error messages when installing "Device is null or empty", and it makes the process does not continue (cannot install completed).
Reported date: 2020-05-02
Status: Fixed & Upgraded on 2020-06-06. Closed on 2020-06-10
How to fix
Install new version at https://android.thetruthspy.com we deployed on 2020-06-06 it will fix this issue.