What happens when you click on the following link?
It sounds like it might be an issue with whatever it is you are trying to download. .aspx isn't a .pdf but it could be a page trying to generate a .pdf that isn't working. If you could provide a link to the page that has that link, it would be helpful.
Thanks for your response. I talked to someone who was
having the same problem and they told me it was in the security settings, I am
not very savvy on a computer so I will to figure out