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 took a look at your website and I see that it is having the jotform embedded through the js embed code.
What I would suggest is to try adding the iframe embed code instead.
You can get it by following the next steps: How to get the jotform iFrame Code
Once you do, it should be shown properly for you on both website and mobile.
Do let us know how it goes.