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 @ 12:23
Script: /board/usercp.php?action=buddy&add=38&sid=58b5c9568bc56c3d5f785bd0ebc67a3e
Referer: