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 'ics'@'localhost' (using password: YES)
sql error number: 1045
sql version:
file: /var/www/vhosts/ismail-coban-stiftung.de/httpdocs/wbb2/wcf/lib/system/database/MySQLDatabase.class.php (29)
php version: 5.3.10-1ubuntu3.25
wcf version: 1.0.11 pl 3 (Horizon)
date: Sat, 16 Dec 2017 16:29:21 +0000
request: /wbb2/index.php?form=UserLogin
referer:

Stacktrace:

#0 /var/www/vhosts/ismail-coban-stiftung.de/httpdocs/wbb2/wcf/lib/system/database/Database.class.php(76): MySQLDatabase->connect()
#1 /var/www/vhosts/ismail-coban-stiftung.de/httpdocs/wbb2/wcf/lib/system/WCF.class.php(270): Database->__construct(...)
#2 /var/www/vhosts/ismail-coban-stiftung.de/httpdocs/wbb2/wcf/lib/system/WCF.class.php(88): WCF->initDB()
#3 /var/www/vhosts/ismail-coban-stiftung.de/httpdocs/wbb2/global.php(18): WCF->__construct()
#4 /var/www/vhosts/ismail-coban-stiftung.de/httpdocs/wbb2/index.php(7): require_once('/var/www/vhosts...')
#5 {main}