Fatal Exception: android.view.WindowManager$BadTokenException (Unable to add window)

Hi folks.  Another crash in Production:

Fatal Exception: android.view.WindowManager$BadTokenException: Unable to add window – token android.os.BinderProxy@3d20bc is not valid; is your activity running?

       at android.view.ViewRootImpl.setView(ViewRootImpl.java:739)

       at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:298)

       at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:87)

       at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4132)

       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3249)

       at android.app.ActivityThread.access$1000(ActivityThread.java:197)

       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1681)

       at android.os.Handler.dispatchMessage(Handler.java:102)

       at android.os.Looper.loop(Looper.java:145)

       at android.app.ActivityThread.main(ActivityThread.java:6862)

       at java.lang.reflect.Method.invoke(Method.java)

       at java.lang.reflect.Method.invoke(Method.java:372)

       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1404)

       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1199)

Stack trace: https://justpaste.it/63yxi

Running Corona 2017.3184.

Please help.

Cheers,

Fire