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 just checked your account, and I am able to see your account is scheduled to downgrade on September 27th, 2016. The reason is "Overlimit".
The free account gets 100 MB of available space. On your form the files of 102 MB has been uploaded by Form submitters.
I would suggest you to either upgrade your plan, or go to your submissions page and delete uploaded files or uploaded attachments to free up some storage space.
You can check Jotform features and limitation of every subscription plan on the below URL:
If you have any query, or need further assistance, feel free to revert back.