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: 20.04.2024 @ 07:49
Script: /board/profile.php?userid=47&sid=8b28e1af3f7c958490cdce23915546b9
Referer: