Activity Not opening from the notification bar

When I click on the Notification the app is not open.

I have setFloags like below. now it is working.

 i.setFlags (Intent.FLAG_ACTIVITY_CLEAR_TASK| Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_MULTIPLE_TASK | Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);