App is not alive / App was killed.

[YongHoonYun]

I use this module receives a push service. This module being used in two of the app. One of the key server and the server being implemented for the push service. But it generates the following error in one app.

[DEBUG] onPushReceive: App is not alive; 'notificationreceive' won't be triggered [DEBUG] onPushOpen: App was killed; resume the app without triggering 'notificationopen'

This log can understand that occurs when the module is causing the destroy. I have merely had quit the app is running. Under what circumstances would like to know whether this module destroy. Currently occurring in Android devices.