How to recover files?

Unfortunately, I deleted questions and realized that the files related to them were also lost. How can I get them?

Thank you!

I can still access the files through our email logs so I think we still have it on our servers, but I'm not sure how long. You can check and view your email logs in your account > history section. 

https://www.jotform.com/help/293-How-to-view-all-your-form-Email-History

We do not recommend deleting a field if you wish to keep its data. You can just hide it in the form and add a new field. Hide field option is in the context menu:

Or, clone the form and use the cloned version

https://www.jotform.com/help/27-How-to-clone-an-existing-form-from-your-account