Also, the errors in the error log mainly have jetpack in them... none of them say there's something wrong with the Wordpress SEO plugin. So that is why I'm asking this question on this support page.
A few examples of errors:
[Fri Nov 22 23:29:16 2013] [error] [client 46.129.27.243] FastCGI: server "/usr/local/php52/bin/php-cgi" stderr: PHP Warning: Missing argument 1 for is_wp_error(), called in /sites/harlemoil.nl/www/wp-content/plugins/jetpack/modules/videopress/videopress.php on line 127 and defined in /sites/harlemoil.nl/www/wp-includes/class-wp-error.php on line 204
[Fri Nov 22 23:30:41 2013] [error] [client 46.129.27.243] FastCGI: server "/usr/local/php52/bin/php-cgi" stderr: PHP Warning: ignore_user_abort() has been disabled for security reasons in /sites/harlemoil.nl/www/wp-content/plugins/jetpack/class.jetpack-sync.php on line 77, referer: http://harlemoil.nl/wp-admin/admin.php?page=jetpack
[Fri Nov 22 23:30:41 2013] [error] [client 46.129.27.243] FastCGI: server "/usr/local/php52/bin/php-cgi" stderr: PHP Warning: ignore_user_abort() has been disabled for security reasons in /sites/harlemoil.nl/www/wp-content/plugins/jetpack/class.jetpack.php on line 3481, referer: http://harlemoil.nl/wp-admin/admin.php?page=jetpack