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: 19.04.2024 @ 23:45
Script: /board/usercp.php?action=buddy&add=6&sid=eb11b0119a83819766606d243015df17
Referer: