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 checked this form and I can see that it is working properly. I was able to do a test submission twice. Are you still experiencing this problem?
The error message you're getting only appears if you set a Unique Submission or Unique Question in the Preferences. Please refer to these guides:
Hope that helps. Thank you.