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: 29.03.2024 @ 08:36
Script: /board/memberslist.php?order=DESC&sortby=userposts&letter=&sid=976158d9a63f1f366d374a57c3d1a512&page=2
Referer: