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: 29.03.2024 @ 12:50
Script: /board/board.php?boardid=5&sid=df150591b84ff3011be77500abded5c4
Referer: