Activation key disappears when restarting computer

Not sure if it happens every time I restart my PC but it has happened several times.  I have two paid licenses and run the software on a desktop at home and a laptop for work.  When restarting, I get a message about the license not being valid and I have to go find it and reactivate again.  Is there a way to keep it activated without going through this repeatedly?

Hello George,

If you have a PRO licence, send me please the activation key to: markosky@emclient.com and we’ll solve the issue.

Russel