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.
Have you checked your form's revision history? You can revert your form to a previous state where the deleted sections were included in it.
Hope this helps.
If you need further assistance, please let us know.