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.
Facebook is scraping the old meta description, because of this reason you've this issue. I was able to replicate the issue when I tried sharing your link in my Facebook account.
I updated your time scraped option in Facebook by using the Facebook Sharing Debugger. I scraped the new information and now it is fixed. If you encounter this issue again, you can follow my way to update your open graph settings.
Now here is my result:
If you need further assistance, please feel free to ask.