Your package may limit the number of web pages you can create. For example, the Business Lite package allows you to publish 5 web pages. If you need to create more pages, you can upgrade to another package that offers more pages.
You are on the gold plan. We advertise that you get 100 pages but at this time the system will allow you to have more than that. The 5 gigs, is the more critical limit, if you start building over a hundred pages you may see some performance issues, slowness, etc.