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 @ 23:12
Script: /board/board.php?boardid=12&sid=979b2240caab5fbb6892e529c7946d37
Referer: