What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
Upon checking the form embedded in your website, I believe you are not receiving email notifications because you are missing important fields in your "Emails" setup.
Here's a screenshot of the setting of your form. You are missing the "Sender E-mail" field.
You may also want to check this guide to prevent future email problems: http://www.jotform.com/help/208-How-to-setup-email-alerts-to-prevent-email-bouncing-related-issues.
Also, after setting up all the fields correctly please do try making a test submission by filling out your form and clicking submit, see if you can receive email notifications.
Let us know if you need more help on this.