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: 27.04.2024 @ 02:16
Script: /board/board.php?boardid=4&sid=78a21973e2e8bfe8baa56520723da79c
Referer: