Cant reply after app exit

[adminkendol]

hello , anybody can help me, why can't reply after app exit or kill E/AndroidRuntime(19957): java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.ContentResolver android.content.Context.getContentResolver()' on a null object reference E/AndroidRuntime(19957): at android.app.PendingIntent.sendAndReturnResult(PendingIntent.java:1002) E/AndroidRuntime(19957): at android.app.PendingIntent.send(PendingIntent.java:986) E/AndroidRuntime(19957): at android.app.PendingIntent.send(PendingIntent.java:835) E/AndroidRuntime(19957): at com.devsonflutter.reflex.notification.autoReply.AutoReply.sendReply(AutoReply.java:69) E/AndroidRuntime(19957): at com.devsonflutter.reflex.notification.NotificationListener.onNotificationPosted(NotificationListener.java:74) E/AndroidRuntime(19957): at android.service.notification.NotificationListenerService.onNotificationPosted(NotificationListenerService.java:450) E/AndroidRuntime(19957): at android.service.notification.NotificationListenerService$MyHandler.handleMessage(NotificationListenerService.java:2311) E/AndroidRuntime(19957): at android.os.Handler.dispatchMessage(Handler.java:106) E/AndroidRuntime(19957): at android.os.Looper.loopOnce(Looper.java:210) E/AndroidRuntime(19957): at android.os.Looper.loop(Looper.java:299) E/AndroidRuntime(19957): at android.app.ActivityThread.main(ActivityThread.java:8261) E/AndroidRuntime(19957): at java.lang.reflect.Method.invoke(Native Method) E/AndroidRuntime(19957): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:559) E/AndroidRuntime(19957): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:954) W/OOMEventManagerFK(19957): Failed to mkdir /data/miuilog/stability/memleak/heapdump/