Hi Carla, It sounds like you were previously leasing a license from your server, but that is no longer the case anymore for some reason. Your software has reverted back to personal edition.
You will need to re lease a license from your server. There are a few different ways to lease a license from your server depending on the settings applied to your server, but the easiest is to do a File > Open in server. There is more information and a walkthrough on that here: QlikView License Leasing
If you have any trouble with this please contact us.