Link is not working

I’ve activated this plug in on 2 different wordpress sites and get the exact same result on both with Firefox and Safari.

I enter this code in the html section:
[download label=”Audio 1 of 4″]https://www.takeyoutothetop.com/wp-content/uploads/2013/09/CreateContentFast1.mp3[/download]

This link appears on the page:
Audio 1 of 4 (it is blue and underlined in the site)

When I click on the link I get this:
The page you are looking for might have been removed, had its name changed, or is temporarily unavailable.

The page is there, if you go to the link the audio plays. Not sure what the challenge is, please help!

https://www.ads-software.com/plugins/download-shortcode/