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 @ 17:28
Script: /board/usercp.php?action=options_change&sid=58cd1e0ce2994938625c4f187828cb5c
Referer: