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 @ 03:14
Script: /board/profile.php?userid=8&sid=777abb96aa999e115e9f473facc1ea32
Referer: