halo 5 guardians not working

So my halo 5 guardians isn’t working it wants to to put in a disk to play wich is dumb because I have it on digital download, and I played it fine a day ago but now it doesn’t work. I’ve contacted Microsoft support and couldn’t figure it out so they sent me here.

Take a look at this guide:

http://support.xbox.com/en-US/xbox-one/store/insert-disc-purchase-digital