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 cloned your form to test it and was unable to reproduce the issue. PCI errors usually refer to incomplete data being passed. If you have required fields set in Authorize.net and the form does not contain those fields or they are not filled, Authorize.net will not accept the transaction. The same goes for expired or incorrectly entered credit cards.
If you wouldn't mind sharing the specific error, we will be happy to let you know the cause.