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: 19.04.2024 @ 17:28
Script: /board/board.php?boardid=3&sid=3569293ac84ba928500cc35af2e2edef
Referer: