FVDI-2018: the device has been Deactivated

Every 30 days, FVDI 2018 should be connected to internet to be activated again. 

if more than 30 days you didn't connect FVDI to internet, you will get this error: the device has been deactivated.

It is easy to solve the problem, just connect FVDI computer to internet, run software, the software will automatically activate FVDI to get another 30 days.