Hello Nosterman85,
Thanks for using Apple Support Communities.
I understand that a purchase from the Mac App Store isn't downloading. I suggest that you try and force the download to restart by following the directions below.
- Open iTunes.
- Mac: From the menu bar at the top of your computer screen, choose Store > Check for Available Downloads.
Windows: Hold down the Control and B keys on your keyboard to open the iTunes menu bar. Choose Store > Check for Available Downloads. Learn more about menus in iTunes for Windows.
- If prompted, enter your Apple ID and password.
If you still can't restart your downloads, get more help.

If you still can't restart your downloads, try the steps below:
- Restart your iOS device or computer.
- Check for updates for your Mac or PC and install any software updates. Also, update any security software you might have, such as anti-virus, anti-malware, or firewall.
- If you use Wi-Fi for Internet access, use a different Wi-Fi network when you download. If you connect to a home network, restart your Wi-Fi router. Also, check for and install any firmware updates for your Wi-Fi router. Refer to your router manufacturer's website for information on how to update its firmware.
- If you're using a Mac or PC, use an Ethernet cable for wired Internet access instead of using Wi-Fi. If the issue persists and you're using iTunes for Windows, learn how to resolve issues between iTunes and security software.
Resume interrupted iTunes Store downloads
Take care.