NSP not Displaying on front page Shop & buy template

After I save some changes to the list of k2 categories to display,
The modules stopped displaying on the front page as it did originally. I did not change the position of the initial module.

please help. http://www.royalhairbraiding.com/salon/

When module checks data source and nothing is returned back then module will not display anything.
Make sure your selected data source contains items and these items are enabled.

So either;
1. Your selected categories does not have any items.
2. These items are not published.
3. You might have selected items between such and such dates in module settings, that nothing falls into this query.
4. You might have selected featured articles only in module settings and none of the items are featured.
5. and so on....