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 @ 11:11
Script: /board/login.php?sid=d1a4b0e94d7dd9dfd188667fc05e45fd
Referer: