Fatal error: Connecting to MySQL server '80.81.241.57' failed.

You get more information about the problem in our knowledge base: http://www.woltlab.com/help/?code=2054

Information:

error message: Connecting to MySQL server '80.81.241.57' failed.
error code: 2054
sql type: MySQLDatabase
sql error: The server requested authentication method unknown to the client
sql error number: 2054
sql version:
file: /var/www/vhosts/forum-cb-history.de/htdocs/wcf/lib/system/database/MySQLDatabase.class.php (31)
php version: 5.6.40-70+0~20240411.82+debian10~1.gbp0c0ec4
wcf version: 1.1.2 (Tempest)
date: Thu, 18 Apr 2024 16:46:55 +0000
request: /board49-leistungsverst%C3%A4rker-abschw%C3%A4cher/?s=9fd214fe767b3656ceb61709754fbd94cf87b4ce
referer:

Stacktrace:

#0 /var/www/vhosts/forum-cb-history.de/htdocs/wcf/lib/system/database/Database.class.php(78): MySQLDatabase->connect()
#1 /var/www/vhosts/forum-cb-history.de/htdocs/wcf/lib/system/WCF.class.php(296): Database->__construct(...)
#2 /var/www/vhosts/forum-cb-history.de/htdocs/wcf/lib/system/WCF.class.php(95): WCF->initDB()
#3 /var/www/vhosts/forum-cb-history.de/htdocs/global.php(18): WCF->__construct()
#4 /var/www/vhosts/forum-cb-history.de/htdocs/index.php(7): require_once('/var/www/vhosts...')
#5 {main}