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 @ 09:24
Script: /board/board.php?boardid=9&sid=ecaecbc286b6e7e60876c0bb5b7164e9
Referer: