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: 25.04.2024 @ 03:53
Script: /board/usercp.php?action=options_change&sid=31d29299e35d449dd2b3fffe461dfae6
Referer: