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: 18.04.2024 @ 07:02
Script: /board/addreply.php?postid=14699&action=quote&sid=f26da5200b6f6483337b9801f8b235c1
Referer: