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 @ 19:49
Script: /board/memberslist.php?order=DESC&sortby=userposts&letter=&sid=721920206ddb166b3109c184bc7cad9e&page=2
Referer: