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 @ 05:35
Script: /board/board.php?boardid=10&sid=ce72b00e2523ba4c722750b8c9f459fb
Referer: