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.
Error 13 refers to wrong API keys used.
Please check your Authorize.Net account if active, then copy the correct API keys needed to use in the Authorize.net integration. Paste directly the API keys during the Configuration Wizard process of integration.
Let us know if issue still persist even after making sure the correct keys were already provided.