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.
To confirm, you are getting that error message when you submit your form with the Authorize.net payment integration, is that correct? I checked that error message and I believe it is triggered by the Authorize.net system, please refer to this article about it: https://support.authorize.net/authkb/index?page=content&id=A425. If you are submitting a form using the same details on a very short interval, then that may be causing the problem.
Let us know if this helps resolve the issue.
Yes, that was the problem.