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.
Found the solution, the image(lock) in the Jotform template, aren't HTTPS friendly.
I have tested your website now. Glad that it is working correctly.
By default, all form direct links and embed codes are now secured by default. You can learn more about this news on our blog post here.
If you need any assistance, do not hesitate to contact us.