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: 20.04.2024 @ 01:31
Script: /board/memberslist.php?order=DESC&sortby=userposts&letter=&sid=c504dfd264cc49a1e7795a39df09c4f4&page=2
Referer: