Could not load Moxiecode.Manager.Plugins.FavoritesPlugin

When I first load the WYSIWYG editor I always get this popup (in chrome)

"Could note create instance of plugin class: Moxiecode.Manager.Plugins.FavoritesPlugin"
(see attached screen shot)

However after this the message never reappears. Obviously I have something not set quite correct does any one have any ideas? I have searched forums and google but I can't find an answer.

My config etc looks like this:-

<script type="text/javascript" src="/content/tiny_mce/tiny_mce_gzip.js"></script>
<script type="text/javascript">
   tinyMCE_GZ.init({
      plugins: 'style,layer,table,save,advhr,advimage,advlink,iespell,insertdatetime,preview,media,searchreplace,print,contextmenu,paste,directionality,fullscreen,noneditable,visualchars,nonbreaking,xhtmlxtras,imagemanager,filemanager',
      themes: 'simple,advanced',
      languages: 'en',
      disk_cache: true,
      debug: false
   });
</script>
<script type="text/javascript">
   tinyMCE.init({
      theme: "advanced",
      plugins: "safari,spellchecker,pagebreak,style,layer,table,save,advhr,advimage,advlink,iespell,inlinepopups,insertdatetime,preview,media,searchreplace,print,contextmenu,paste,directionality,fullscreen,noneditable,visualchars,nonbreaking,xhtmlxtras,template",
      convert_urls : false,
      relative_urls: false,
      spellchecker_languages: "English=en",
      spellchecker_rpc_url: "/TinyMCE.ashx?module=SpellChecker",

      // Theme options
      theme_advanced_buttons1: "bold,italic,underline,strikethrough,|,justifyleft,justifycenter,justifyright,justifyfull,|,styleselect,formatselect,fontselect,fontsizeselect,|,fullscreen",
      theme_advanced_buttons2: "cut,copy,paste,pastetext,pasteword,|,search,replace,|,bullist,numlist,|,outdent,indent,blockquote,|,undo,redo,|,link,unlink,cleanup,|,preview,|,forecolor,backcolor,|,styleprops,spellchecker",
      theme_advanced_buttons3: "cite,abbr,acronym,del,ins,attribs,|,visualchars,nonbreaking,blockquote,|,code",
      theme_advanced_toolbar_location: "top",
      theme_advanced_toolbar_align: "left",
      theme_advanced_statusbar_location: "bottom",
      theme_advanced_resizing: true,

      // Example content CSS (should be your site CSS)
      content_css: "/content/CmsSite.css",
      
                mode: 'exact', 
               elements: 'Club_Description,Club_News,', width: '800', height:'300'
      
   });
</script>

Can any one help? To be honest I don't want the favorites plugin anyway (not even sure what it is for)