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 @ 20:40
Script: /board/usercp.php?action=buddy&add=44&sid=98c12f1c129e26ec3d6158970149e630
Referer: