Publish URL?

All,

I have a free Zoho account and have created a one-form application and would like to make it available publicly. According to this help page, https://www.zoho.com/creator/help/forms/publish.html, the Publish URL button should be available for me app. However, it is not - neither it nor the Embed URL buttons are available.

Would you please help me figure out how to publish this app?

Thx.