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 @ 09:38
Script: /board/board.php?boardid=9&sid=1f370f2e1a2fe2824f1956303edd442d
Referer: