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Hi,

for the widget: I’m not sure what the problem is. Both, widgets and sidebars are WordPress core features, this has nothing to do with the theme, I don’t think that the theme is the problem. If you want, you can send us URL + login for your website, then we can check the backend for you: info @ 7theme . net

For the banner on top: You have to put the code/shortcode for the banner in the header.php file, it’s nothing you can do with just a click.