It means that we have no answer from the payment system yet. There could be no funds on your PayPal/Card or payment system is temporary not working. When the billing system charges you successfully - license starts working automatically.
Some features are available when you have 5+ active paid IPs in total in all Premium and Enterprise licenses.
Note that you do not need to use all 5 servers with site builder. You can have only 1 filled IP and 4 empty IP slots. This will not affect builder work and it will mean that you have 5 active paid IPs.