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 have found the problem but not sure why it occurred.
In the Preferences the form had been disabled but I do not understand how this could have occurred.
I checked the website and I can see the form available.
Did you perhaps unknowingly had Disabled the form?
Here is the user guide on how the form can change its status
As is now, your jotform http://www.jotform.co/form/23513291593858 is enabled and your account is also Active with no issue.
Hope this help. Inform us if issue persist.