Sidebar appearing when there are no widgets

That’s because when those sidebars are empty, the plugin creates a default sidebar.

To disable these default sidebars, you’ll need to use a code snippet as described in our documentation: https://wp-customerarea.com/snippet/disable-default-sidebar/

Excellent. I will try it. Many thanks!

I had the same problem – I tried the code and it worked well, thanks!
I would also like to disable the default sidebar for private pages I created, Is it possible / How can I do that? Thanks!

For single pages, you’ll have to edit your theme’s templates. This is briefly explained in our documentation about the template system but mainly depends on your theme.