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 @ 16:31
Script: /board/search.php?sid=cf8d9d8c973beb9200f6adf49cd7d352
Referer: