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: 01.05.2024 @ 22:11
Script: /board/profile.php?userid=20&sid=c3d2d842eb6d86d802696e74f1e61ea4
Referer: