MediaWiki internal error.

Original exception: exception 'DBQueryError' with message 'A database error has occurred
Query: SELECT user_ip FROM `user_newtalk` WHERE user_ip = '54.211.136.250' LIMIT 1
Function: User::checkNewtalk
Error: 2006 MySQL server has gone away (mysql-user.stanford.edu)
' in /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/Database.php:844
Stack trace:
#0 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/Database.php(799): Database->reportQueryError('MySQL server ha...', 2006, ' SELECT user_i...', 'User::checkNewt...', false)
#1 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/Database.php(1244): Database->query(' SELECT user_i...', 'User::checkNewt...')
#2 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/Database.php(1124): Database->select('user_newtalk', 'user_ip', Array, 'User::checkNewt...', Array)
#3 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/User.php(1266): Database->selectField('user_newtalk', 'user_ip', Array, 'User::checkNewt...')
#4 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/User.php(1222): User->checkNewtalk('user_ip', '54.211.136.250', true)
#5 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/User.php(1241): User->getNewtalk()
#6 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/SkinTemplate.php(289): User->getNewMessageLinks()
#7 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/OutputPage.php(724): SkinTemplate->outputPage(Object(OutputPage))
#8 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/Wiki.php(298): OutputPage->output()
#9 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/index.php(91): MediaWiki->finalCleanup(Array, Object(LoadBalancer), Object(OutputPage))
#10 {main}

Exception caught inside exception handler: exception 'DBUnexpectedError' with message 'Error in fetchObject(): MySQL server has gone away (mysql-user.stanford.edu)' in /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/Database.php:973
Stack trace:
#0 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/Database.php(2375): Database->fetchObject(false)
#1 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/LinkBatch.php(89): ResultWrapper->fetchObject()
#2 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/LinkBatch.php(68): LinkBatch->executeInto(Object(LinkCache))
#3 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/Skin.php(208): LinkBatch->execute()
#4 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/Skin.php(184): Skin->preloadExistence()
#5 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/SkinTemplate.php(101): Skin->initPage(Object(OutputPage))
#6 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/skins/stanfordmodern1.php(23): SkinTemplate->initPage(Object(OutputPage))
#7 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/SkinTemplate.php(150): Skinstanfordmodern1->initPage(Object(OutputPage))
#8 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/OutputPage.php(724): SkinTemplate->outputPage(Object(OutputPage))
#9 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/Exception.php(111): OutputPage->output()
#10 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/Exception.php(134): MWException->reportHTML()
#11 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/Exception.php(213): MWException->report()
#12 /srv/cgi/afs/ir.stanford.edu/dept/its/WWW/communications/webservices/wiki/includes/Exception.php(247): wfReportException(Object(DBQueryError))
#13 [internal function]: wfExceptionHandler(Object(DBQueryError))
#14 {main}