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.
If I understood correctly you are asking what will happen if you delete your form from your account. Will that also delete form from your website.
If you delete form from your account and form is embedded inside of your site, your site will not have form anymore. However I saw that on Page URL you provided there is a link to your form. Upon deleting form from your account link will be visible on your site, but when user click on it link will redirect user to the error page.
Hope this will help. Let us know if you need further assistance.