(I modified the urls from our domain to "phabricator")
[Wed Jan 14 13:20:07 2015] [error] [client 10.0.10.128] [2015-01-14 13:20:07] EXCEPTION: (RuntimeException) Undefined variable: provider at [<phutil>/src/error/PhutilErrorHandler.php:210], referer: http://phabaricator:1111/auth/
[Wed Jan 14 13:20:07 2015] [error] [client 10.0.10.128] #0 PhutilErrorHandler::handleError(integer, string, string, integer, array) called at [<phabricator>/src/applications/auth/controller/config/PhabricatorAuthEditController.php:42], referer: http://phabricator:1111/auth/
[Wed Jan 14 13:20:07 2015] [error] [client 10.0.10.128] #1 PhabricatorAuthEditController::handleRequest(AphrontRequest) called at [<phabricator>/src/aphront/configuration/AphrontApplicationConfiguration.php:196], referer: http://phabricator:1111/auth/
[Wed Jan 14 13:20:07 2015] [error] [client 10.0.10.128] #2 AphrontApplicationConfiguration::processRequest(AphrontRequest, PhutilDeferredLog, AphrontPHPHTTPSink) called at [<phabricator>/src/aphront/configuration/AphrontApplicationConfiguration.php:121], referer: http://phabricator:1111/auth/
[Wed Jan 14 13:20:07 2015] [error] [client 10.0.10.128] #3 AphrontApplicationConfiguration::runHTTPRequest(AphrontPHPHTTPSink) called at [<phabricator>/webroot/index.php:19], referer: http://phabricator:1111/auth/