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 @ 08:52
Script: /board/search.php?sid=b433e52806f3ec6c4a2e1403ccf10eaa
Referer: