Fatal error: Connecting to MySQL server 'localhost' failed.

You get more information about the problem in our knowledge base: http://www.woltlab.com/help/?code=1045

Information:

error message: Connecting to MySQL server 'localhost' failed.
error code: 1045
sql type: MySQLDatabase
sql error: Access denied for user 'web90'@'localhost' (using password: YES)
sql error number: 1045
sql version:
file: /srv/www/htdocs/web90/html/wbb3/wcf/lib/system/database/MySQLDatabase.class.php (29)
php version: 5.2.14
wcf version: 1.0.11 pl 1 (Horizon)
date: Thu, 23 Feb 2012 03:11:00 +0000
request: /wbb3/wbb/
referer:

Stacktrace:

#0 /srv/www/htdocs/web90/html/wbb3/wcf/lib/system/database/Database.class.php(76): MySQLDatabase->connect()
#1 /srv/www/htdocs/web90/html/wbb3/wcf/lib/system/WCF.class.php(270): Database->__construct(...)
#2 /srv/www/htdocs/web90/html/wbb3/wcf/lib/system/WCF.class.php(88): WCF->initDB()
#3 /srv/www/htdocs/web90/html/wbb3/wbb/global.php(18): WCF->__construct()
#4 /srv/www/htdocs/web90/html/wbb3/wbb/index.php(7): require_once('/srv/www/htdocs...')
#5 {main}