Reactivation

Hello, 

 I recently had to update my SolidWorks because I couldn't access my teammates files. I updated my SolidWorks successfully, but now I cannot open the SolidWorks application at all. It gives me a pop-up warning about reactivating my SolidWorks license, but I can't find where to update my student license. How can I reactivate my account?
Edu