java.lang.IllegalArgumentException: View=DecorView@960babb[InvoiceReport] not attached to window manager
	at android.view.WindowManagerGlobal.findViewLocked(WindowManagerGlobal.java:729)
	at android.view.WindowManagerGlobal.removeView(WindowManagerGlobal.java:626)
	at android.view.WindowManagerImpl.removeViewImmediate(WindowManagerImpl.java:208)
	at android.app.Dialog.dismissDialog(Dialog.java:801)
	at android.app.Dialog.dismiss(Dialog.java:783)
	at com.entitcs.office_attendance.CRM.InvoiceReport$4.onResponse(InvoiceReport.java:752)
	at com.entitcs.office_attendance.CRM.InvoiceReport$4.onResponse(InvoiceReport.java:749)
	at com.android.volley.toolbox.StringRequest.deliverResponse(StringRequest.java:82)
	at com.android.volley.toolbox.StringRequest.deliverResponse(StringRequest.java:29)
	at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:102)
	at android.os.Handler.handleCallback(Handler.java:958)
	at android.os.Handler.dispatchMessage(Handler.java:99)
	at android.os.Looper.loopOnce(Looper.java:230)
	at android.os.Looper.loop(Looper.java:319)
	at android.app.ActivityThread.main(ActivityThread.java:8919)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:578)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1103)