WL7-Help-System-clicking-on-a-link-creates-an-exception

Steps to reproduce:
1. Open WL Help window
2. Go to C# Coded strategies topic
3. Click on "take me there now" link.

Below are exception details:

CODE:

TheArtOfDev.HtmlRenderer.Core.Entities.HtmlLinkClickedException: Error in link clicked intercept
 ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
 ---> System.ArgumentException: Unknown Page in ShowViewPage: CSharpStrategy
   at WealthLab7.MainWindow.ShowViewPage(String page, Boolean makeVisible, Boolean isHover)
   at WealthLab7.MainWindow.HelpAction(String action)
   at WealthLab7.HelpWindow.UpdateVal(Object reference, RoutedEvenArgs`1 col)
   --- End of inner exception stack trace ---
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Delegate.DynamicInvokeImpl(Object[] args)
   at System.Delegate.DynamicInvoke(Object[] args)
   at System.Windows.RoutedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at TheArtOfDev.HtmlRenderer.WPF.HtmlControl.OnLinkClicked(HtmlLinkClickedEventArgs e)
   at TheArtOfDev.HtmlRenderer.WPF.HtmlControl.OnLinkClicked(Object sender, HtmlLinkClickedEventArgs e)
   at TheArtOfDev.HtmlRenderer.Core.HtmlContainerInt.HandleLinkClicked(RControl parent, RPoint location, CssBox link)
   --- End of inner exception stack trace ---
   at TheArtOfDev.HtmlRenderer.Core.HtmlContainerInt.HandleLinkClicked(RControl parent, RPoint location, CssBox link)
   at TheArtOfDev.HtmlRenderer.Core.HtmlContainerInt.HandleMouseUp(RControl parent, RPoint location, RMouseEvent e)
   at TheArtOfDev.HtmlRenderer.WPF.HtmlContainer.HandleMouseUp(Control parent, MouseButtonEventArgs e)
   at TheArtOfDev.HtmlRenderer.WPF.HtmlControl.OnMouseUp(MouseButtonEventArgs e)
   at TheArtOfDev.HtmlRenderer.WPF.HtmlPanel.OnMouseUp(MouseButtonEventArgs e)
   at System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
   at System.Windows.Input.InputManager.ProcessStagingArea()
   at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
   at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
   at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)