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: 18.04.2024 @ 06:31
Script: /board/board.php?boardid=3&sid=ea5623dbcca52cac219f3f34a52ae2a7
Referer: