Suddenly Ionic App is not taking any click (touch)

Suddenly after publishing application, app stopped to respond on click. Though gesture for opening side menu is working only.

I solved it once by shifting " <ion-nav #myMenu>" above ion-content.
But now again, its doing same problem.
Please find me a solution.

I placed my menu in following way.

<ion-nav #mycontent></ion-nav> <ion-content> <ion-menu type="overlay" [content]="mycontent" ... /> </ion-content>