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 @ 19:51
Script: /board/editpost.php?postid=10770&sid=3df23bfda17aed6ec7ec580d94d233d9
Referer: