Registration Page Not Working

-- HikaShop version -- : 2.4.0
-- Joomla version -- : 3.4.1
-- PHP version -- : 5.4

When I try to register a new customer nothing happens when I click the Register button.

I've checked the Users Manager in Joomla and Hikashop and the new customer is not there. I have set Joomla account activation to Self. Allow User Registration is set to Yes and Notification Email to Admin is set to yes.

Hello,
If you don't see any error message, it means that your Joomla template is not displaying the error messages:
www.hikashop.com/support/support/documen...tibility-issues.html

Hello

I have the same problem.
Ihave just bought the Business Version of HikaShop and try to configurate it. I have a few products and try to buy them. But when I try to register or use it as guest nothing happens.
The code <jdoc:include type="message" /> is included in the template (it shows messages like "...you have to fill in the form.... etc. etc.)
I am using:
-- HikaShop version -- : 2.4.0 Business Version
-- Joomla version -- : 3.4.1
-- PHP version -- : 5.3.23

Here is my testsite: Testsite

And then I have an other problem with the category module. It displays the text "Keine Unterkategorien (no subcategories)". Is there a way to get rid off that text? (I found it. It has to be changed in the module),

Maybe some one can help.

Regards
Andy