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 @ 04:12
Script: /board/profile.php?userid=53&sid=46a0ed90f3f455b5c10a41b4cc8cab80
Referer: