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 @ 15:19
Script: /board/login.php?sid=25c2ab6fffb64944bfd9a3957e2ea9d4
Referer: