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 @ 10:15
Script: /board/profile.php?userid=3&sid=f26da5200b6f6483337b9801f8b235c1
Referer: