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 @ 17:26
Script: /board/profile.php?userid=1&sid=2be20a9d20cbb8f94a036843a2505002
Referer: