Exception
  There is no snapshot for the specified key.  The SaveCurrentDataTableToSnapshot must be called before the restore.
Source     : MicroFour StrataFrame Business
Stack Trace: 
   at MicroFour.StrataFrame.Business.BusinessLayer.RestoreCurrentDataTableSnapshot(String key, Boolean refreshUI)
   at MicroFour.StrataFrame.Business.BusinessLayer.RestoreCurrentDataTableSnapshot(Boolean refreshUI)
   at SFMessaging.ProjectSettingsControl.lstLanguages_ChildFormResults(Object sender, ListViewChildFormResultsEventArgs e)
   at MicroFour.StrataFrame.UI.Windows.Forms.ListView.OnChildFormResults(ListViewChildFormResultsEventArgs e)
   at MicroFour.StrataFrame.UI.Windows.Forms.ListView.AddNewChildRecord()
   at MicroFour.StrataFrame.UI.Windows.Forms.ListView.HandleObjectClick(Object sender, EventArgs e)
   at System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)
   at System.Windows.Forms.ToolStripButton.OnClick(EventArgs e)
   at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
   at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
   at System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met)
   at System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met)
   at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.ToolStrip.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativewindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativewindow.WndProc(Message& m)
   at System.Windows.Forms.Nativewindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)