error on line 26 at column 61: Entity 'nbsp' not defined

Hi manager,

I am using this plugin and it is absolutely great. But recently I found out that it stops my blog feed and show this message. I am reasonably certain that it is cause by this plugin because the feed functions when the plugin is off. Only found out that there was a problem because I submitted my feed to technorati and they reported a problem accessing.

Here is the message you will see in my feed.

This page contains the following errors:

error on line 26 at column 61: Entity ‘nbsp’ not defined
Below is a rendering of the page up to the first error.

This appears to be the line it is referring to

<dc:creator><a id='post_author' class='fn' itemprop='name' title='View all posts by Binni Ong'>Binni Ong</a>&nbsp;<span itemscope="itemscope"

This is my site feed http://www.terraseeds.com/blog/feed/

http://wordpress.org/extend/plugins/google-seo-author-snippets/