SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Link-ID == false, connect failed
mysql error: The server requested authentication method unknown to the client
mysql error number: 2054
Date: 25.04.2024 @ 06:01
Script: /board/newthread.php?boardid=3&sid=01dd7a93f1bb584f5ccc2bd542240bc0
Referer: