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: 24.04.2024 @ 06:39
Script: /board/search.php?action=user&userid=8&sid=3574bade53e412db9a7a9b74ac0d9aa8
Referer: