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: 29.03.2024 @ 01:23
Script: /board/board.php?boardid=10&sid=7f5a14ce926f4e2c610d7ce4853b0346
Referer: