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've cloned your JotForm to my account to see if I can edit the JotForm and I was able to edit it without any issues. This could be an issue with session time out or browser caching issue.
Please try clearing the browser cache by following the steps provided in the guide below :
Please make sure that you are logged into your account while editing the form. Also, I notice that your account is still having a guest username. I'm not sure if this is causing the issue, but if you want we can change it with your required username, if available.
Let us know if the issue still persists after clearing the cache. We will be happy to look into this issue further.