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 @ 04:15
Script: /board/profile.php?userid=54&sid=1f7af17f28cc1d8a1259ecfaa4ba958a
Referer: