IONIC 3 refresh page on push event with on

Below code called from one of page PropertyPage:
on event subscribe gotoNotificationsPage‘gotoNotificationsPage’, () => {


This code executes and loads page NotificationsPage but after some time again page refreshes and come backs to PropertyPage

Need some help I stuk in this issue from last 2 days .

Issue is fixed everything is working fine.
In my code one other event of child component triggering I have removed it and it is working as per exepcted !
Above code is working fine .
Coool Ionic!!