Fatal error: Connecting to MySQL server 'sql6.ims-firmen.de' failed.

You get more information about the problem in our knowledge base: http://www.woltlab.com/help/?code=2002

Information:

error message: Connecting to MySQL server 'sql6.ims-firmen.de' failed.
error code: 2002
sql type: MySQLDatabase
sql error: php_network_getaddresses: getaddrinfo failed: Name or service not known
sql error number: 2002
sql version:
file: /is/htdocs/wp12935634_C1ZF9NOZB4/www/forum/wcf/lib/system/database/MySQLDatabase.class.php (29)
php version: 5.6.36-he.0
wcf version: 1.0.11 pl 1 (Horizon)
date: Thu, 21 Jun 2018 14:12:37 +0000
request: /forum/wbb/index.php?page=Thread&postID=199675
referer:

Stacktrace:

#0 /is/htdocs/wp12935634_C1ZF9NOZB4/www/forum/wcf/lib/system/database/Database.class.php(76): MySQLDatabase->connect()
#1 /is/htdocs/wp12935634_C1ZF9NOZB4/www/forum/wcf/lib/system/WCF.class.php(270): Database->__construct(...)
#2 /is/htdocs/wp12935634_C1ZF9NOZB4/www/forum/wcf/lib/system/WCF.class.php(88): WCF->initDB()
#3 /is/htdocs/wp12935634_C1ZF9NOZB4/www/forum/wbb/global.php(18): WCF->__construct()
#4 /is/htdocs/wp12935634_C1ZF9NOZB4/www/forum/wbb/index.php(7): require_once('/is/htdocs/wp12...')
#5 {main}