Hello, we are not able to update the theme because when we try to update we are losing our design, I attached the current design, could you please update for us, because we try to update and follow your upgrading step but is not work for us.
We have removed your website and server access from your reply. Because this is a public forum for our customers and it can break your website security.
Moreover, we have updated the theme and plugins to check the issue and we have seen that it’s changed the design. After then we realize we have no header and footer style in our theme that shows in your screenshot. That means you have edited the theme code to customize the header. Hence, it’s normal that when you update the theme and core plugin the design will be lost if you edit the theme or plugin code. In this case, you need to keep a backup of the edited file and replace the file update the update.
If you have no backup of those files then please contact your server provider to restore.