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: 20.04.2024 @ 02:02
Script: /board/index.php?sid=7e07ab8b2783ff7c2f33b46dc909fbf1
Referer: