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: 07.05.2024 @ 23:49
Script: /board/addreply.php?postid=14886&action=quote&sid=a4ef74e8c59018be5d8b0932544d1f40
Referer: