Having some issues on one of my sites where I repeatedly receive the same error message over and over again in the error log:
[16-Jan-2014 19:24:52] WordPress database error MySQL server has gone away for query select val from wp_wfConfig where name='firewallEnabled' made by require('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('plugins_loaded'), call_user_func_array, wordfence::veryFirstAction, wfConfig::get, wfDB->querySingle
I deleted WordFence from this server for the time being. Hopefully, someone from the WordFence team knows what this is so I can possibly bring it back.