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: SELECT value,exptime FROM `mw_objectcache` WHERE keyname = 'formationnmercur-mw_:messages:individual:Userlogin-summary' LIMIT 1
Function: SqlBagOStuff::get
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, 'SELECT value,e...', 'SqlBagOStuff::g...', false)
#1 /home/formationn/www/mercurewiki/includes/db/Database.php(1050): DatabaseBase->query('SELECT value,e...', 'SqlBagOStuff::g...')
#2 /home/formationn/www/mercurewiki/includes/db/Database.php(1134): DatabaseBase->select('objectcache', Array, Array, 'SqlBagOStuff::g...', Array, Array)
#3 /home/formationn/www/mercurewiki/includes/BagOStuff.php(267): DatabaseBase->selectRow('objectcache', Array, Array, 'SqlBagOStuff::g...')
#4 /home/formationn/www/mercurewiki/includes/MessageCache.php(624): SqlBagOStuff->get('formationnmercu...')
#5 /home/formationn/www/mercurewiki/includes/MessageCache.php(545): MessageCache->getMsgFromNamespace('Userlogin-summa...', 'fr')
#6 /home/formationn/www/mercurewiki/includes/GlobalFunctions.php(2420): MessageCache->get('userlogin-summa...', true, false)
#7 /home/formationn/www/mercurewiki/includes/SpecialPage.php(874): wfEmptyMsg('userlogin-summa...', '<userlogin-s...')
#8 /home/formationn/www/mercurewiki/includes/SpecialPage.php(850): SpecialPage->outputHeader()
#9 /home/formationn/www/mercurewiki/includes/SpecialPage.php(578): SpecialPage->execute(NULL)
#10 /home/formationn/www/mercurewiki/includes/Wiki.php(262): SpecialPage::executePath(Object(Title))
#11 /home/formationn/www/mercurewiki/includes/Wiki.php(63): MediaWiki->handleSpecialCases(Object(Title), Object(OutputPage), Object(WebRequest))
#12 /home/formationn/www/mercurewiki/index.php(114): MediaWiki->performRequestForTitle(Object(Title), NULL, Object(OutputPage), Object(User), Object(WebRequest))
#13 /home/formationn/www/mercurewiki/index.php5(1): require('/home/formation...')
#14 {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: SELECT rev_id,rev_page,rev_text_id,rev_timestamp,rev_comment,rev_user_text,rev_user,rev_minor_edit,rev_deleted,rev_len,rev_parent_id,page_namespace,page_title,page_latest FROM `mw_page`,`mw_revision` WHERE page_namespace = '8' AND page_title = 'Databaseerror' AND (rev_id=page_latest) AND (page_id=rev_page) LIMIT 1
Function: Revision::fetchFromConds
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, 'SELECT rev_id,...', 'Revision::fetch...', false)
#1 /home/formationn/www/mercurewiki/includes/db/Database.php(1050): DatabaseBase->query('SELECT rev_id,...', 'Revision::fetch...')
#2 /home/formationn/www/mercurewiki/includes/Revision.php(243): DatabaseBase->select(Array, Array, Array, 'Revision::fetch...', Array)
#3 /home/formationn/www/mercurewiki/includes/Revision.php(194): Revision::fetchFromConds(Object(DatabaseMysql), Array)
#4 /home/formationn/www/mercurewiki/includes/Revision.php(177): Revision::loadFromConds(Object(DatabaseMysql), Array)
#5 /home/formationn/www/mercurewiki/includes/Revision.php(62): Revision::newFromConds(Array)
#6 /home/formationn/www/mercurewiki/includes/MessageCache.php(642): Revision::newFromTitle(Object(Title))
#7 /home/formationn/www/mercurewiki/includes/MessageCache.php(545): MessageCache->getMsgFromNamespace('Databaseerror', 'fr')
#8 /home/formationn/www/mercurewiki/includes/GlobalFunctions.php(781): MessageCache->get('databaseerror', true, false)
#9 /home/formationn/www/mercurewiki/includes/GlobalFunctions.php(744): wfMsgGetKey('databaseerror', true, false, true)
#10 /home/formationn/www/mercurewiki/includes/Exception.php(91): wfMsgReal('databaseerror', Array)
#11 /home/formationn/www/mercurewiki/includes/db/Database.php(3074): MWException->msg('databaseerror', 'Database error')
#12 /home/formationn/www/mercurewiki/includes/Exception.php(175): DBQueryError->getPageTitle()
#13 /home/formationn/www/mercurewiki/includes/Exception.php(220): MWException->reportHTML()
#14 /home/formationn/www/mercurewiki/includes/Exception.php(325): MWException->report()
#15 /home/formationn/www/mercurewiki/includes/Exception.php(393): wfReportException(Object(DBQueryError))
#16 [internal function]: wfExceptionHandler(Object(DBQueryError))
#17 {main}