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: 29.03.2024 @ 15:35
Script: /board/profile.php?userid=4&sid=721920206ddb166b3109c184bc7cad9e
Referer: