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: 24.04.2024 @ 04:40
Script: /board/board.php?boardid=1&sid=5721e1f581bd8e47c82f117c6132cfbc
Referer: