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: 25.04.2024 @ 15:18
Script: /board/newthread.php?boardid=24&sid=cfb6480e42921fa1425535e7613c22f4
Referer: