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 @ 07:13
Script: /board/addreply.php?postid=14886&action=quote&sid=b648da77111bc7c8758fcd5257a6d6db
Referer: