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 @ 13:50
Script: /board/addreply.php?postid=51&action=quote&sid=6f018b64ccb7ec193cb9f551ce73f802
Referer: