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 @ 14:23
Script: /board/board.php?boardid=8&sid=ff5877220c787e7b5af841a5877516d9
Referer: