This morning I got an email saying that I reached the payment limit. "It seems like you have reached your payments limit. Free accounts are limited to 1 payments / month. Your forms will be disabled on Thursday at 12pm EST". That's in TWO hours from now!
The payment was made via Paypal so it has nothing to do with JotForm.
Please contact us at support@jotform.com, we should help you solve this issue.