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: 28.03.2024 @ 23:45
Script: /board/board.php?boardid=10&sid=43e863ae0ff3ff7dd17233f336bf8f6a
Referer: