Fatal error: Connecting to MySQL server 'db1.deinprovider.net' failed.

You get more information about the problem in our knowledge base: http://www.woltlab.com/help/?code=2003

Information:

error message: Connecting to MySQL server 'db1.deinprovider.net' failed.
error code: 2003
sql type: MySQLDatabase
sql error: Can't connect to MySQL server on 'db1.deinprovider.net' (111 "Connection refused")
sql error number: 2003
sql version:
file: /var/www/web321/htdocs/hundeschule/wcf/lib/system/database/MySQLDatabase.class.php (29)
php version: 5.4.45
wcf version: 1.0.11 pl 4 (Horizon)
date: Fri, 19 Apr 2024 21:10:03 +0000
request: /index.php?page=Thread&threadID=238&highlight=&s=dd8de1461aee4a5e03e93744098011b938ec1bcb
referer:

Stacktrace:

#0 /var/www/web321/htdocs/hundeschule/wcf/lib/system/database/Database.class.php(76): MySQLDatabase->connect()
#1 /var/www/web321/htdocs/hundeschule/wcf/lib/system/WCF.class.php(270): Database->__construct(...)
#2 /var/www/web321/htdocs/hundeschule/wcf/lib/system/WCF.class.php(88): WCF->initDB()
#3 /var/www/web321/htdocs/hundeschule/global.php(18): WCF->__construct()
#4 /var/www/web321/htdocs/hundeschule/index.php(7): require_once('/var/www/web321...')
#5 {main}