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 @ 05:19
Script: /board/profile.php?userid=66&sid=ba1bbd0af29ec1e5dea39a09ba28269b
Referer: