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: 26.04.2024 @ 07:38
Script: /board/search.php?action=24h&sid=1ece6d8e777c34ac1bc6095c4ef269c1
Referer: