App Stuck at white screen Scene COnfiguration- iOS app

Hello

Our app recently started givinng below mentioned error when running in Xcode simulator.

" [SceneConfiguration] Info.plist contained no UIScene configuration dictionary"

App launches spash creen properly and than dispalys a white screen.

I was able to run properly few weeks back.

It’s an. existing app in Ionic 3, running fine for quite a some time now.

Thanks