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: 18.04.2024 @ 13:00
Script: /board/editpost.php?postid=14886&sid=4a26bacb1422729437d305f0b1b9a2a8
Referer: