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 took a look at the account holding the jotform, but all I can tell you (since your email is not matching the email in the account) is that the jotform has received more submissions than allowed / allocated space and until the extra submissions are not removed so that accounts falls under the limit, the account will be disabled.
If you are looking after the account you would need to download all submissions with files attached to them (which you see as important) and then delete them (which will delete them permanently) to lower the used space.
Do let us know if you have any further questions.