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: 16.04.2024 @ 15:37
Script: /board/usercp.php?action=addsubscription&boardid=3&sid=d4958d7a102bfa5f999e4b5549fb1e00
Referer: