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: 28.03.2024 @ 19:52
Script: /board/usercp.php?action=buddy&add=8&sid=6f018b64ccb7ec193cb9f551ce73f802
Referer: