download link not working

Im uploading my file as a .pdf.

when user recieves the download link it goes to a page 404 error

(<a href=”http://nashvillefinancialservices.com/etd-download/d6kan2a0o0aaHR0cDovL25hc2h2aWxsZWZpbmFuY2lhbHNlcnZpY2VzLmNvbS93cC1jb250ZW50L3VwbG9hZHMvMjAxNS8wMS9maW5hZHYucGRm)

and says page does not exist. please help.

you can test at http://nashvillefinancialservices.com/why-vanguard-etf/ abd choose download now

https://wordpress.org/plugins/email-to-download/