For more information on these settings, check out this guide.

You can also create a one-time exception for this app, if you don't want to change your settings system-wide. Since this app was downloaded from outside of the Mac App Store, you may need to adjust your Gatekeeper settings to allow you to open the app for the first time. Unzip the file and move the Partytime app over to your Applications folder, to keep things all neat and tidy.