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: 23.04.2024 @ 15:57
Script: /board/search.php?action=24h&sid=36671491b377b9f0ce7a1949de8bac55
Referer: