Can't continue in checkout process

I am a new user and trying to become familiar with this great product. I have gotten far enough to publish categories and some products but when I try to checkout I have to enter a billing address. When I click on 'add' a lightbox opens but there is nothing inside it. What do I do? Is there some module I have to create/publish?

What am I missing?

Hi,

It means that you unpbulish all the address custom fields via the menu Display->Custom fields. Is that the case ?
If you unpublish all the custom fields of the address, then, hikashop will do what you told him to do and not display anything in that popup.

Hello.

Thank you for the quick response. All of the great reviews that I have read of your support seem true -- it is a big reason why I gave this product a chance and why I will upgrade if I see that it is a fit for me.

However, I have not changed the default settings of the custom fields. I have attached a png of the back end.

Please advise.

Then, if you're getting a blank page, it's probably because of a fatal error. Could you please make sure that your PHP configuration enables you to see errors and if not, edit your php.ini file and search for the string parameter display_errors.
This parameter should be turned On : display_errors = On.
If it's not the case, please edit your php.ini file, modify this line, save your file and try again.
You should now see the error message instead of a completely blank popup.
If you don't know how to modify your php.ini you should ask your hosting company as the method varies from one to another.

I have checked the php.ini and the display_errors is 'on'

Ok. Could you do a screenshot of the page when you have the popup open ?

Here are two screenshots.
1) The 'new' button to create a billing address
2) The blank pop up that appears when I click the button.

Would it be possible to get a backend access to your website so that we can check out the problem ?

I have sent you credentials via the contact us form.

The url is dni-tango.com
I do not have a menu item published on the front end to go to the shopping cart so you will have to go directly there via www.dni-tango.com/us/store/virtual-store-test .

It seems to be the plugin system module anywhere which crash the popup.
If you unpublish that plugin, the popup displays fine.

I appreciate all of the help but I don't understand this last post:

It seems to be the plugin system module anywhere which crash the popup.
If you unpublish that plugin, the popup displays fine.

Which plug-in are you referring to? Is it part of Joomla or Hikashop?
Does this mean that I should reinstall?

What is the solution? Can I simply unpublish the plug-in? Do I need it for something else?

Thanks again for all the help.

The "module anywhere" plugin is not a plugin which is part of joomla nor hikashop. It's a plugin that you can install on your joomla website in order to display modules anywhere on your pages. You must have installed it at some point.
I don't know how you're using it. If you don't use it, you can unpublish it.
When I looked at your website, unpublishing that plugin solved the problem. So yes, that's all you have to do.