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 tried to add a form with the lightbox code and now I have error on the page: MuseJSAssert:
This is a re-post of a comment on Adding a form to Adobe Muse
Good day! Please try to re-embed your form using our iframe method: How to Get Form iFrame Codes. This should work.
Please try it and let us know for the results. Can you also let us know the form URL in question?
I have responded you here: http://www.jotform.com/answers/180545.