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 @ 04:47
Script: /board/index.php?sid=b433e52806f3ec6c4a2e1403ccf10eaa
Referer: