android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@bf850ab is not valid; is your activity running?
	at android.view.ViewRootImpl.setView(ViewRootImpl.java:1411)
	at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:408)
	at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148)
	at android.app.Dialog.show(Dialog.java:361)
	at com.entitcs.office_attendance.CRM.InvoiceReport.L(Unknown Source:99)
	at com.entitcs.office_attendance.CRM.InvoiceReport.G0(Unknown Source:10)
	at com.entitcs.office_attendance.CRM.InvoiceReport.B(Unknown Source:0)
	at f4.ub.onClick(Unknown Source:2)
	at android.view.View.performClick(View.java:7560)
	at android.view.View.performClickInternal(View.java:7533)
	at android.view.View.-$$Nest$mperformClickInternal(Unknown Source:0)
	at android.view.View$PerformClick.run(View.java:29756)
	at android.os.Handler.handleCallback(Handler.java:942)
	at android.os.Handler.dispatchMessage(Handler.java:99)
	at android.os.Looper.loopOnce(Looper.java:211)
	at android.os.Looper.loop(Looper.java:300)
	at android.app.ActivityThread.main(ActivityThread.java:8232)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:580)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1028)