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: 25.04.2024 @ 06:27
Script: /board/board.php?boardid=6&sid=c5f69eab9693a7ba3becab8fb8ef179e
Referer: