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: 27.04.2024 @ 00:51
Script: /board/addreply.php?postid=14886&action=quote&sid=1521dba2a69eeab09595c5477ae14831
Referer: