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: 30.06.2025 @ 20:44
Script: /board/board.php?boardid=12&sid=7dc07253c74fb39dc148e6684445394b
Referer: