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 @ 14:21
Script: /board/profile.php?userid=6&sid=0ee2a5ed7a674cf38e3571d416548354
Referer: