JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
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.
We are very sorry for the inconvenience that this is causing you, this issue seems to have been caused by a very recent modification to our back-end code. Our developers are already notified and are working on fixing the issue, but if you would like to make your form work again for you right away, please use our Form Revision History feature and revert to the last working revision / version of your form.
Please let us know if you need further assistance, we will be happy to help. Again, we are sorry for the inconvenience. Thank you for using JotForm. :)