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: 28.03.2024 @ 23:35
Script: /board/search.php?action=24h&sid=8ba729a3a8b85a8ba7083b28bdc09881
Referer: