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: 01.05.2024 @ 22:04
Script: /board/newthread.php?boardid=6&sid=3d76518237550e7a06e0614b7a4c4029
Referer: