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: 23.04.2024 @ 07:50
Script: /board/editpost.php?postid=14699&sid=41345a82610bb411011c25f7aa8f1a6c
Referer: