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: 28.03.2024 @ 18:46
Script: /board/profile.php?userid=54&sid=fbdbead993696c7e3056cf219a0c8f3b
Referer: