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: 01.05.2024 @ 21:29
Script: /board/misc.php?action=viewip&postid=1419&sid=5bcd90a0274644229db63e7e3412979d
Referer: