[problems with student version vectorworks]

Hello everyone, 

 

 

I installed the student version this week and managed to use the program without any problems or difficulties for two days.

Yesterday when I turned on Vectorworks when it seemed ready to use, it turned off for no apparent reason.

Does anyone know what may be causing this situation? Or how to solve?

Yesterday I uninstalled and reinstalled the program but I continued with the same problem ...

 

Thanks!