Hi,
If your content module is blank, it means that you configured your module's hikashop options to not display anything.
For example, if you set it to display products, and that you selected your main category as parent category but that you set the "sub element filter" option to "direct sub elements" instead of "all sub elements" and that you don't have products directly under the main category but only in sub categories of that category, it wouldn't display any product.
If you have trouble understanding all the options of the module, you can:
1. Look at the tutorials on our documentation
2. Look at the way we setup the modules on our demo website (the back end is accessible)
3. Use the Help button on the hikashop options page of your module to see an explanation for each option
4. Post a screenshot of your options so that we can see what you did and help you figuring what is the problem.