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 @ 15:31
Script: /board/misc.php?action=viewip&postid=1002&sid=5bcd90a0274644229db63e7e3412979d
Referer: