Bloes up on /me pokes back [ENTER]

Exception in Gtk# callback delegate

  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.NullReferenceException: A null value was found where an object instance was required.
  at Circ.Controller.CommandProcesser.ProcessCommand (System.Object sender, System.String prefix, System.String[] args) [0x00000] 
  at Circ.MainControl.CommandEntered (System.Object ctrl, System.String cmd) [0x00000] 
  at Circ.Frontend.GtkSharp.MainWindow.ChatEntryActivated (System.Object sender, System.EventArgs e) [0x00000] 
  at GLib.Signal.voidObjectCallback (IntPtr handle, IntPtr gch) [0x00000] 
   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
   at GLib.Signal.voidObjectCallback(IntPtr handle, IntPtr gch)
   at GLib.Signal.voidObjectCallback(IntPtr , IntPtr )
   at Gtk.Application.gtk_main()
   at Gtk.Application.gtk_main()
   at Gtk.Application.Run()
   at Circ.Frontend.GtkSharp.GtkFrontend.StartPresentation(IMainControl ctrl)
   at Circ.MainControl+<>c__CompilerGenerated1.<>c__AnonymousMethod6()
   at System.MulticastDelegate.invoke_void()