If you look at the top of the readme for the template, you will see this line:
This template uses several images to represent various types of equipment, visitors, and residents. Because of that, this template does not fit within the limits of a sandbox account. To learn more about enterprise licenses, which come with greatly increased resource limits, please contact us.
Per a previous post you made about reaching a resource limit, you are already in talks with our team about moving to a paid organization. If you decide to move forward with us, you can create a new application from this template within your organization.