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 have checked your form and your integration and it seems good, I also have integrated a cloned form of yours and I'm receiving the data normally.
Please, do not make changes on the spreadsheet that is integrated with your form, this may break the integration.
Also, try re-integrating your form with Google Spreadsheet again, it should fix the issue in case that there is one.
Do let us know here if it helps.
thank you for getting back to me