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: 27.04.2024 @ 04:46
Script: /board/search.php?sid=c9ebda5b9ec30975a3252ca8c6a26da1
Referer: