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: 18.04.2024 @ 00:38
Script: /board/profile.php?userid=1&sid=c8d0c42be05df20842c6b247a7748309
Referer: