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 @ 12:46
Script: /board/board.php?boardid=10&sid=603f51dbe07fd333abb38f64bd8644ac
Referer: