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 @ 00:15
Script: /board/usercp.php?sid=cb5d8e83f91cda374dc2e560f91fcca8&action=favorites
Referer: