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: 08.05.2024 @ 17:08
Script: /board/board.php?boardid=1&sid=eeceaf5a69938ded072e3c66ce119e53
Referer: