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 @ 09:02
Script: /board/profile.php?userid=1&sid=61d64029add58eca424ab4777742bfb0
Referer: