Warning: mysql_real_escape_string() expects parameter 2 to be resource, boolean given in /var/www/wiki/includes/db/DatabaseMysql.php on line 331

Warning: mysql_real_escape_string() expects parameter 2 to be resource, boolean given in /var/www/wiki/includes/db/DatabaseMysql.php on line 331

Warning: mysql_real_escape_string() expects parameter 2 to be resource, boolean given in /var/www/wiki/includes/db/DatabaseMysql.php on line 331

Warning: mysql_query(): supplied argument is not a valid MySQL-Link resource in /var/www/wiki/includes/db/DatabaseMysql.php on line 23
MediaWiki internal error.

Original exception: exception 'DBConnectionError' with message 'DB connection error: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111)' in /var/www/wiki/includes/db/Database.php:691
Stack trace:
#0 /var/www/wiki/includes/db/DatabaseMysql.php(133): DatabaseBase->reportConnectionError(' Can't connect ...')
#1 /var/www/wiki/includes/db/DatabaseMysql.php(360): DatabaseMysql->open('localhost', 'apemapuser', 'wuzelfisch', 'wikidb')
#2 /var/www/wiki/includes/db/Database.php(810): DatabaseMysql->ping()
#3 /var/www/wiki/includes/db/Database.php(1292): DatabaseBase->query('SELECT * FROM...', 'Block::newLoad')
#4 /var/www/wiki/includes/Block.php(237): DatabaseBase->select('ipblocks', '*', 'ipb_address IN ...', 'Block::newLoad')
#5 /var/www/wiki/includes/Block.php(1028): Block->newLoad('213.202.230.117')
#6 /var/www/wiki/includes/User.php(1269): Block::newFromTarget('213.202.230.117', '213.202.230.117', true)
#7 /var/www/wiki/includes/User.php(1525): User->getBlockedStatus(false)
#8 /var/www/wiki/includes/User.php(1515): User->getBlock(false)
#9 /var/www/wiki/includes/User.php(1540): User->isBlocked(false)
#10 /var/www/wiki/includes/Title.php(1608): User->isBlockedFrom(Object(Title))
#11 /var/www/wiki/includes/Title.php(1678): Title->checkUserBlock('create', Object(User), Array, true, false)
#12 /var/www/wiki/includes/Title.php(1253): Title->getUserPermissionsErrorsInternal('create', Object(User), true)
#13 /var/www/wiki/includes/Article.php(932): Title->getUserPermissionsErrors('create', Object(User))
#14 /var/www/wiki/includes/Article.php(479): Article->showMissingArticle()
#15 /var/www/wiki/includes/Wiki.php(484): Article->view()
#16 /var/www/wiki/includes/Wiki.php(255): MediaWiki->performAction(Object(Article))
#17 /var/www/wiki/includes/Wiki.php(640): MediaWiki->performRequest()
#18 /var/www/wiki/includes/Wiki.php(547): MediaWiki->main()
#19 /var/www/wiki/index.php(57): MediaWiki->run()
#20 {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: BEGIN
Function: DatabaseBase::begin
Error: 0
' in /var/www/wiki/includes/db/Database.php:860
Stack trace:
#0 /var/www/wiki/includes/db/Database.php(827): DatabaseBase->reportQueryError('', 0, 'BEGIN', 'DatabaseBase::b...', false)
#1 /var/www/wiki/includes/db/Database.php(2718): DatabaseBase->query('BEGIN', 'DatabaseBase::b...')
#2 /var/www/wiki/includes/db/Database.php(780): DatabaseBase->begin()
#3 /var/www/wiki/includes/db/Database.php(1292): DatabaseBase->query('SELECT lc_valu...', 'LCStore_DB::get')
#4 /var/www/wiki/includes/db/Database.php(1378): DatabaseBase->select('l10n_cache', Array, Array, 'LCStore_DB::get', Array, Array)
#5 /var/www/wiki/includes/LocalisationCache.php(766): DatabaseBase->selectRow('l10n_cache', Array, Array, 'LCStore_DB::get')
#6 /var/www/wiki/includes/LocalisationCache.php(304): LCStore_DB->get('de', 'messages:dberr-...')
#7 /var/www/wiki/includes/LocalisationCache.php(222): LocalisationCache->loadSubitem('de', 'messages', 'dberr-problems')
#8 /var/www/wiki/languages/Language.php(1793): LocalisationCache->getSubitem('de', 'messages', 'dberr-problems')
#9 /var/www/wiki/includes/db/DatabaseError.php(96): Language->getMessage('dberr-problems')
#10 /var/www/wiki/includes/db/DatabaseError.php(122): DBConnectionError->msg('dberr-problems', 'Sorry! This sit...')
#11 /var/www/wiki/includes/Exception.php(190): DBConnectionError->getHTML()
#12 /var/www/wiki/includes/db/DatabaseError.php(174): MWException->reportHTML()
#13 /var/www/wiki/includes/Exception.php(209): DBConnectionError->reportHTML()
#14 /var/www/wiki/includes/Exception.php(392): MWException->report()
#15 /var/www/wiki/includes/Exception.php(471): MWExceptionHandler::report(Object(DBConnectionError))
#16 /var/www/wiki/includes/Wiki.php(550): MWExceptionHandler::handle(Object(DBConnectionError))
#17 /var/www/wiki/index.php(57): MediaWiki->run()
#18 {main}