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 @ 13:25
Script: /board/newthread.php?boardid=4&sid=1521dba2a69eeab09595c5477ae14831
Referer: