Manual Theme Activation Not Working

Hello,

I’m hoping that someone can assist us with an issue we’re running into. We use the Newspaper theme on all of our publication websites, and when we activate it, we follow the manual activation process.

I’m trying to activate the theme on a new website we are building, but when I click on the option in the theme panel to take me to the manual activation page, it takes me to a blank page. It would be on the page that is:
https://tagdiv.com/td_cake/manual.php?td_server_id= (Note: I removed the server ID when posting on the forum).

I’ve tried on multiple browsers, cleared cache, and had one of my assistants try on their computer as well with no luck. Please see the screenshot below.

I need this to work so I can get the TagDiv activation key.

Any idea why this is happening?

Thanks in advanced!