Popping context pops current screen not alert about quickalert HOT 3 CLOSED

//both sowPopupWindow and createPopupWindow
showPopupWindow(
  context,
  gravity: KumiPopupGravity.rightBottom,
  //curve: Curves.elasticOut,
  bgColor: Colors.grey.withOpacity(0.5),
  clickOutDismiss: true,
  clickBackDismiss: true,
  customAnimation: false,
  customPop: false,
  customPage: false,
  //targetRenderBox: (btnKey.currentContext.findRenderObject() as RenderBox),
  //needSafeDisplay: true,
  underStatusBar: false,
  underAppBar: true,
  offsetX: 0,
  offsetY: 0,
  duration: Duration(milliseconds: 200),
  onShowStart: (pop) {
    print("showStart");
  },
  onShowFinish: (pop) {
    print("showFinish");
  },
  onDismissStart: (pop) {
    print("dismissStart");
  },
  onDismissFinish: (pop) {
    print("dismissFinish");
  },
  onClickOut: (pop){
    print("onClickOut");
  },
  onClickBack: (pop){ 
    print("onClickBack");
  },
  childFun: (pop) {
    return Container(
      key: GlobalKey(),
      padding: EdgeInsets.all(10),
      height: 100,
      width: 100,
      color: Colors.redAccent,
    );
  },
);