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.
Usually this error was due to the API having incorrect information in the settings. Please check on your form https://www.jotform.com/42657232057959 and make sure you have provided the correct/valid API settings.
It must be the same issue that was resolved here.
Hope this help. Let us know if still not working.