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.
I'm checking your form and I can see what you are pointing to.
Let me investigate this little bit more, and I'll get back to you.
Ok, I think I found out what is causing the problem, it is this requirement, Terms and conditions widget:
So, I removed and re-added it to the form and it worked fine now.
Please try and let me know how that worked.