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 @ 02:27
Script: /board/profile.php?userid=66&sid=c888bc3b7b82e71282f8609538acedac
Referer: