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: 24.04.2024 @ 14:07
Script: /board/editpost.php?postid=15082&sid=ece524c053330cb24c12c05ae82d0094
Referer: