Have you bought SOLIDWORKS Simulation Premium from your VAR?
you have SW Premium, but for NL analysis you need to buy SIMULATION PREMIU.
Bert, I checked your license and it looks like you do have a Simulation Premium license that would unlock this functionality waiting on your network for you to use. You probably just need to adjust the license pull order on your machine. You would do that by going through this process:
1. Go to the Windows Start menu
2. Do a search for "SolidNetWork License Manager", open the utility with that name
3. On the 'License Order' tab of this utility move "Simulation Premium" to the top of the list (see the image below)
4. Restart SolidWorks
5. Create a study and check whether Nonlinear study is now available