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 @ 20:55
Script: /board/usercp.php?action=addsubscription&boardid=7&sid=7853bd44fc9291892d7f6263111f5cae
Referer: