After embedding form I receive an error

I get a Whoops error that says it cannot find my form. What causes this?

If I understand you correctly, you are receiving this error on the website where you have embedded the form - and not on JotForm when you are editing your form.

Could you please let us know the link to the page where you have embedded your form, so that we can check and see what seems to be the issue?

We will await your response, thank you.