Every morning I receive a notification alert that my eM account has to be reactivated. Does anyone know why this is happening?

I typically shut my computers down at night. When I start them in the morning and launch eM application, I receive an alert that my eM client needs to be activated. I’ve request and received the application activation code but have to re-activate it. It does process ok but the three daily steps is frustrating.

This usually happens when you use one eM Client license on multiple computers - is this the case?