The first time that you log in on your new install you will be presented with a setup wizard. This is a one-time process that will help you set the basic settings to help get your system up and running quickly. There are setting like the callsign for the repeater, the sound device, and gpio in and out pins that are required to be set properly in order for the system to work at any level. This process is straightforward and you will be prompted for the information. Upon completing the setup wizard you will be logged out and a new configuration file will be generated. When you log back in you will see the normal web interface and can then modify additional settings.
NOTE: You will need to make sure that your sound device is connected before proceeding as it will try to detect it for you.