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: 20.04.2024 @ 02:50
Script: /board/board.php?boardid=1&sid=2ad25d4c47236e82a83777a50af62c94
Referer: