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: 27.04.2024 @ 01:51
Script: /board/addreply.php?postid=1227&action=quote&sid=3e75d41b9405381c602a069f2808924d
Referer: