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: 20.04.2024 @ 00:04
Script: /board/board.php?boardid=24&sid=d2bb213cc209a44edfab6ffad4d2cf8b
Referer: