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 @ 16:46
Script: /board/newthread.php?boardid=11&sid=d3ebec849cb34ecb43099dd1baff3da6
Referer: