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: 26.04.2024 @ 18:37
Script: /board/board.php?boardid=1&sid=db4ff81e8a31975aa80d76418961afe8
Referer: