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: 19.04.2024 @ 00:15
Script: /board/editpost.php?postid=2863&sid=c028afd278181c9ec639aed43b01d369
Referer: