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 tried following this guide on how to publish your form in Weebly: http://www.jotform.com/help/215-Adding-a-Form-to-Weebly?
You can also find the instruction under the "Platform" section in your "Publish" wizard, just search for "Weebly".
If that does not work, please do share to us the website page where you have embedded your form and we'll check it further.
Apologies for the inconvenience.
The new JotForm App for Weebly helps you add, create and manage forms and form submissions directly from Weebly.
It would be great if you could tell us what you think of the App.
Feel free to comment on the blog post above; we value your feedback.