I guess yes your license has expired.
What you can do is, you can check in your license about the expiry of the license.
You might have received the LEF part of the license, or if not then you can go on
to see the LEF of your license and check the expiry.
If your license has expired or if there are any other issues with the key, please file a request to our Qoncierge team and they will assist you. The form can be found here, http://www.qlik.com/us/services/support/qoncierge/form