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: 28.03.2024 @ 21:34
Script: /board/usercp.php?action=addsubscription&boardid=9&sid=eaacf0d22658a98c597014f54c79af5a
Referer: