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: 25.04.2024 @ 21:42
Script: /board/usercp.php?action=buddy&add=6&sid=62c2caa0aa2c7138e17807c88c4125d3
Referer: