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 @ 15:58
Script: /board/board.php?boardid=10&sid=55010aaa949c777ad5f1473266d89576
Referer: