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: 26.04.2024 @ 07:49
Script: /board/usercp.php?action=buddy_list&sid=0ced85f072f04f97c60ff67bf011c719
Referer: