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 opened your form and my browser did not crash. I tested this in Google Chrome and Mozilla Firefox. I also did a test submission and it was successful.
I cloned your form and I can verify that it is working properly. Also, it has only 5 conditions. May I know what are the browsers you were using when you experience this problem?
Also, if this form is embedded on a webpage, please try to re-embed it using the iFrame method. Here's a guide: https://www.jotform.com/help/148-Getting-the-form-iFrame-code. This will prevent script conflicts between the webpage and the form.
I will clear your form cache so that your forms will be refreshed from our servers. Thank you.