Traceback (most recent call last):
  File &#34;run_openlp.py&#34;, line 71, in &lt;module&gt;
    start()
  File &#34;run_openlp.py&#34;, line 67, in start
    main()
  File &#34;C:\Users\tgc\code\more_media\openlp\core\app.py&#34;, line 430, in main
    sys.exit(application.run(qt_args))
  File &#34;C:\Users\tgc\code\more_media\openlp\core\app.py&#34;, line 124, in run
    Registry().execute(&#39;bootstrap_post_set_up&#39;)
  File &#34;C:\Users\tgc\code\more_media\openlp\core\common\registry.py&#34;, line 148, in execute
    result = function(*args, **kwargs)
  File &#34;C:\Users\tgc\code\more_media\openlp\core\ui\media\mediacontroller.py&#34;, line 148, in bootstrap_post_set_up
    self.setup_display(self.preview_controller.preview_display, True)
  File &#34;C:\Users\tgc\code\more_media\openlp\core\ui\media\mediacontroller.py&#34;, line 208, in setup_display
    self.vlc_player.setup(display, preview)
  File &#34;C:\Users\tgc\code\more_media\openlp\core\ui\media\vlcplayer.py&#34;, line 172, in setup
    output_display.vlc_instance = vlc.Instance(command_line_options)
AttributeError: &#39;NoneType&#39; object has no attribute &#39;Instance&#39;