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: 28.03.2024 @ 11:31
Script: /board/newthread.php?boardid=6&sid=999609ec5680eabb0ae77cda69ca3d54
Referer: