Client API not loading to database properly

I have a form which loads to a webpage via Client API.

http://www.ars-lucida.com/test123/advancedmonth_feedback_form.html
http://www.ars-lucida.com/test123/advancedmonth_feedback_form.php

(They are the same form, I just made a .html and .php file to see if there would be a difference in the way Zoho received the submitted data.)

The page loads all the form elements from Zoho perfectly. However, on Submit, the data doesn't show up in the View.

http://creator.zoho.com/agamayoga/agama-yoga-data-collection/view/8/

I have found that when I add the data using the Zoho Creator app (as opposed to an external page), the data persists and everything works just fine.

So I don't understand what the problem is. The Client API is working, since it is loading successfully from Creator, but it just can't seem to get the data to persist.

Thanks for your help!

Andrew