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 @ 16:47
Script: /board/usercp.php?action=buddy&add=1&sid=82b1233ac2e3952deb4e3c95e6e80fce
Referer: