Big Increase in 404 Errors after Google Custom Search Engine Install on Website

[will2112]

My URL is: http://www.furniturefashion.comHi forum.I recently installed a Custom Google Search Engine (https://www.google.com/cse/) on my blog about ten days ago.  Since then my 404 errors in Webmaster Tools has skyrocketed by several thousand.  I had not had an issue before.  Once it was installed the 404 errors started appearing.  What's interesting is that all the errors have the URL then the word "undefined" at the end.   I have attached a screen shot from my Webmaster Tools dashboard.  Also, there are a few examples below of what the URLs are that have the 404 errors.wood_closet_organizer_to_improve_space_utilization/undefinedsmall-sweet-10-inspiring-small-kitchen-designs/undefined Has anyone had this issue?  I very much want the search engine on my site, but not at the expense of several thousand 404 errors.  My site queries has been going down since the installation of the custom search engine.   Here is some of the code that I have below that I took off my site doing a "view source".  Any help would be greatly appreciated.href='http://cdn.furniturefashion.com/wp-content/plugins/google-custom-search/css/smoothness/jquery-ui-1.7.3.custom.css?ver=3.9.2' type='text/css' media='all' />rel='stylesheet' id='gsc_style_search_bar-css' href='http://www.google.com/cse/style/look/minimalist.css?ver=3.9.2' type='text/css' media='all' />rel='stylesheet' id='gsc_style_search_bar_more-css' href='http://cdn.furniturefashion.com/wp-content/plugins/google-custom-search/css/gsc.css?ver=3.9.2' type='text/css' media='all' />< uXRSEkC

[ecommercebc]

Hi there,

I think I spotted this thread over on the Google forums, but it looks like your issue is down to Javascript and the WP plugin you're using.

There's no hard and fast fixes for this, but I'd recommend uninstalling the custom search plugin for now, seeing if that resolves the issue. If it does, you can either speak to the developer and notify them of this bug or try a different plugin (there's more than one for custom search).

Sources (other incidents of these errors with different plugins):

• https://wordpress.org/support/topic/google-webmasters-reports-undefined-in-urls-causes-404s
• http://developer.sharethis.com/forum/read/162482