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: 26.04.2024 @ 13:14
Script: /board/addreply.php?postid=14886&action=quote&sid=4a26bacb1422729437d305f0b1b9a2a8
Referer: