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.
Is it the "Leave us a Review" form? I tested the form and could submit it on Firefox, Chrome and Internet Explorer:
Are you still experiencing the same problem? If so please let us know the type of error (submit button holds, ...) and which browser you are using.
Also you may try clearing your browser's cache to see if it helps.
Let us know if we can assist you further.