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: 24.04.2024 @ 02:51
Script: /board/usercp.php?action=addsubscription&boardid=28&sid=1c76bb96242ac5c0dede5b9bb3d3816a
Referer: