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: 19.04.2024 @ 00:47
Script: /board/profile.php?userid=66&sid=7432470a4f5bf9dba9d9e21f473da394
Referer: