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.
Please open the jotform in question and remove the widget that had left this and then save the jotform and check the preview to see if it was removed.
To remove it right just click on it and then click on the option 'delete', or click once on the widget then once again on the red x in its top right corner.
After that you can add the widget back to your jotform once again.
If the issue repeats itself once again after you add it, please let us know which widget you have tried to add and we will take a look at your jotform for possible reasons why it would do that for you.