MediaWiki internal error.

Original exception: exception 'DBQueryError' with message 'A database error has occurred. Did you forget to run maintenance/update.php after upgrading? See: http://www.mediawiki.org/wiki/Manual:Upgrading#Run_the_update_script
Query: SET NAMES utf8
Function: DatabaseMysql::open
Error: 1226 User 'formationnmercur' has exceeded the 'max_questions' resource (current value: 64000) (formationnmercur.mysql.db)
' in /home/formationn/www/mercurewiki/includes/db/Database.php:781
Stack trace:
#0 /home/formationn/www/mercurewiki/includes/db/Database.php(751): DatabaseBase->reportQueryError('User 'formation...', 1226, 'SET NAMES utf8', 'DatabaseMysql::...', false)
#1 /home/formationn/www/mercurewiki/includes/db/DatabaseMysql.php(117): DatabaseBase->query('SET NAMES utf8', 'DatabaseMysql::...')
#2 /home/formationn/www/mercurewiki/includes/db/Database.php(527): DatabaseMysql->open('formationnmercu...', 'formationnmercu...', 'lBekvtn9', 'formationnmercu...')
#3 /home/formationn/www/mercurewiki/includes/db/Database.php(575): DatabaseBase->__construct('formationnmercu...', 'formationnmercu...', 'lBekvtn9', 'formationnmercu...', 16, 'get from global')
#4 /home/formationn/www/mercurewiki/includes/db/LoadBalancer.php(646): DatabaseBase::newFromType('mysql', Array)
#5 /home/formationn/www/mercurewiki/includes/db/LoadBalancer.php(527): LoadBalancer->reallyOpenConnection(Array, false)
#6 /home/formationn/www/mercurewiki/includes/db/LoadBalancer.php(450): LoadBalancer->openConnection(0, false)
#7 /home/formationn/www/mercurewiki/includes/BagOStuff.php(254): LoadBalancer->getConnection(-2)
#8 /home/formationn/www/mercurewiki/includes/BagOStuff.php(265): SqlBagOStuff->getDB()
#9 /home/formationn/www/mercurewiki/includes/MessageCache.php(252): SqlBagOStuff->get('formationnmercu...')
#10 /home/formationn/www/mercurewiki/includes/MessageCache.php(606): MessageCache->load('fr')
#11 /home/formationn/www/mercurewiki/includes/MessageCache.php(545): MessageCache->getMsgFromNamespace('Userlogin', 'fr')
#12 /home/formationn/www/mercurewiki/includes/GlobalFunctions.php(781): MessageCache->get('userlogin', true, false)
#13 /home/formationn/www/mercurewiki/includes/GlobalFunctions.php(744): wfMsgGetKey('userlogin', true, false, true)
#14 /home/formationn/www/mercurewiki/includes/GlobalFunctions.php(644): wfMsgReal('userlogin', Array, true)
#15 /home/formationn/www/mercurewiki/includes/SpecialPage.php(891): wfMsg('userlogin')
#16 /home/formationn/www/mercurewiki/includes/SpecialPage.php(830): SpecialPage->getDescription()
#17 /home/formationn/www/mercurewiki/includes/SpecialPage.php(842): SpecialPage->setHeaders()
#18 /home/formationn/www/mercurewiki/includes/SpecialPage.php(578): SpecialPage->execute(NULL)
#19 /home/formationn/www/mercurewiki/includes/Wiki.php(262): SpecialPage::executePath(Object(Title))
#20 /home/formationn/www/mercurewiki/includes/Wiki.php(63): MediaWiki->handleSpecialCases(Object(Title), Object(OutputPage), Object(WebRequest))
#21 /home/formationn/www/mercurewiki/index.php(114): MediaWiki->performRequestForTitle(Object(Title), NULL, Object(OutputPage), Object(User), Object(WebRequest))
#22 /home/formationn/www/mercurewiki/index.php5(1): require('/home/formation...')
#23 {main}

Exception caught inside exception handler: exception 'DBQueryError' with message 'A database error has occurred. Did you forget to run maintenance/update.php after upgrading? See: http://www.mediawiki.org/wiki/Manual:Upgrading#Run_the_update_script
Query: SET NAMES utf8
Function: DatabaseMysql::open
Error: 1226 User 'formationnmercur' has exceeded the 'max_questions' resource (current value: 64000) (formationnmercur.mysql.db)
' in /home/formationn/www/mercurewiki/includes/db/Database.php:781
Stack trace:
#0 /home/formationn/www/mercurewiki/includes/db/Database.php(751): DatabaseBase->reportQueryError('User 'formation...', 1226, 'SET NAMES utf8', 'DatabaseMysql::...', false)
#1 /home/formationn/www/mercurewiki/includes/db/DatabaseMysql.php(117): DatabaseBase->query('SET NAMES utf8', 'DatabaseMysql::...')
#2 /home/formationn/www/mercurewiki/includes/db/Database.php(527): DatabaseMysql->open('formationnmercu...', 'formationnmercu...', 'lBekvtn9', 'formationnmercu...')
#3 /home/formationn/www/mercurewiki/includes/db/Database.php(575): DatabaseBase->__construct('formationnmercu...', 'formationnmercu...', 'lBekvtn9', 'formationnmercu...', 16, 'get from global')
#4 /home/formationn/www/mercurewiki/includes/db/LoadBalancer.php(646): DatabaseBase::newFromType('mysql', Array)
#5 /home/formationn/www/mercurewiki/includes/db/LoadBalancer.php(527): LoadBalancer->reallyOpenConnection(Array, false)
#6 /home/formationn/www/mercurewiki/includes/db/LoadBalancer.php(450): LoadBalancer->openConnection(0, false)
#7 /home/formationn/www/mercurewiki/includes/BagOStuff.php(254): LoadBalancer->getConnection(-2)
#8 /home/formationn/www/mercurewiki/includes/BagOStuff.php(433): SqlBagOStuff->getDB()
#9 /home/formationn/www/mercurewiki/includes/BagOStuff.php(427): SqlBagOStuff->expireAll()
#10 /home/formationn/www/mercurewiki/includes/BagOStuff.php(264): SqlBagOStuff->garbageCollect()
#11 /home/formationn/www/mercurewiki/includes/MessageCache.php(252): SqlBagOStuff->get('formationnmercu...')
#12 /home/formationn/www/mercurewiki/includes/MessageCache.php(606): MessageCache->load('fr')
#13 /home/formationn/www/mercurewiki/includes/MessageCache.php(545): MessageCache->getMsgFromNamespace('Databaseerror', 'fr')
#14 /home/formationn/www/mercurewiki/includes/GlobalFunctions.php(781): MessageCache->get('databaseerror', true, false)
#15 /home/formationn/www/mercurewiki/includes/GlobalFunctions.php(744): wfMsgGetKey('databaseerror', true, false, true)
#16 /home/formationn/www/mercurewiki/includes/Exception.php(91): wfMsgReal('databaseerror', Array)
#17 /home/formationn/www/mercurewiki/includes/db/Database.php(3074): MWException->msg('databaseerror', 'Database error')
#18 /home/formationn/www/mercurewiki/includes/Exception.php(175): DBQueryError->getPageTitle()
#19 /home/formationn/www/mercurewiki/includes/Exception.php(220): MWException->reportHTML()
#20 /home/formationn/www/mercurewiki/includes/Exception.php(325): MWException->report()
#21 /home/formationn/www/mercurewiki/includes/Exception.php(393): wfReportException(Object(DBQueryError))
#22 [internal function]: wfExceptionHandler(Object(DBQueryError))
#23 {main}