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 @ 21:51
Script: /board/misc.php?action=viewip&postid=922&sid=1cb88eabe9c3daa155225ecca5ba2aa4
Referer: