Images are not uploading properly

https://www.jotform.us/uploads/ukygrad/80246017822148/3932390745281180910/What is a gigabit city.png

Your site is down?

I checked that specific submission and there were no files present as far as I can tell.  It does look like the most recent submission have correctly forwarded the attachments.  Was the file upload field replaced with a new field at some point?  Let us know what you can and will look into this further.