Now when all plugins are successfully installed and activated, you can move forward with demo content setup. Please open Plugins -> Import Demo Data plugin.
Press the button and wait. Demo content and theme configuration import takes some time - up to several minutes.
If you can see the message below, it means you have done everything absolutely correct and now you have ready-to-use website looking like Theme Project Demo.
If you still have some issues, please do not hesitate to contact us. We will help as soon as possible.