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'm sorry for any inconvenience this have caused you. May we know what are you trying to do? I mean, how are you trying to paste the code on your email or how are you embedding the form to your Facebook account? If you can give us the steps to how were you able to get such error, that would be great.
I would like to suggest you check this guides to help you send your form via email: How-to-Send-a-form-via-email
and also this guide to help you add your form to your Facebook page: Adding-Form-to-Facebook-Pages