If your widget has been activated recently, it might take some time before the widget fills up with content. Please make sure that the widget code is present on all articles on your site. We do ignore content marked as private (private=1), meaning that pages/urls marked as private won't be indexed or included in the widget.
If a week has passed since activation and the widget is still not showing enough content, then we need to have a look at it.
Reach out to us through firstname.lastname@example.org and we will help you!