In the Error log I see
[30-Oct-2013 19:02:30 UTC] PHP Warning: Missing argument 3 for wpseo_upgrader_process_complete() in /home4/myaccount/public_html/mydomain.com/wp-content/plugins/wordpress-seo/inc/wpseo-non-ajax-functions.php on line 259
So I looked it up and in my editor around line 255, on github.com lines 257-264 as duplicated below.
* Check if the current theme was updated and if so, test the updated theme
* for the meta description tag
* @since 1.4.14
* @return void
The Closing of the comments, shouldn't be "**/"