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: 24.04.2024 @ 20:40
Script: /board/board.php?boardid=1&sid=ac7ba72ed8ee4d016bc3c6e2da028c37
Referer: