iTunes stuck on "waiting"

This is my first time I've wanted to buy music from the iTunes store. Specifically, I wanted to buy the Hamilton cast recording. I have enough money in my account, however, when I pressed "buy album" all that happened was the spinning loading circle. It happened much longer than I thought it would so I closed out and decided to check back in later. About an hour afterward I open iTunes back up and I find the album in "downloads" with no cover art and "waiting" underneath the progress bar. I can't access the album from here so I search it again and instead of the circle there is the stop button like it is installing, but there is still no progress. I just stopped it. The Hamilton recording is a relatively large album, and that is the only reason why I can think it's hardly working. I really want to download this because I got a new card just for the purchase of this album. What can I do so it installs?