Zoritec on "500 Error only when trying to access media (Using IIS)"

So I'm trying to upload audio. It works. I see it in my server's content folder, and if I'm on the server, I can open the file.

However, when I try to embed the audio through the website, or even play it in the media dashboard, the player says 00:00 seconds total and it can't play. When I try to access the music through the website on the attachment link, I get a 500 error.

I am using IIS 8, and if someone can help me, I'd appreciate it greatly!