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 @ 12:54
Script: /board/profile.php?userid=50&sid=16f66cb24160771e57687dbce9cd6d2a
Referer: