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 have checked your form and it opens on my end, her's a screenshot of it:
Have you embedded it in a webpage?
If so, please provide us with the link so we can further check it, I have also cleared your forms cache from our end so the last version of it loads.
Do let us know if it still persists on your end.