"eM Client doesn't have a valid license" after reboot.

Every time I reboot my computer and then start eM Client, I get the error message that I don’t have a valid license. After quitting eM Client completely and restarting it, I then get the error message that eM Client needs to reactivate my license. I click Reactivate, and then it works fine after that.

Hi Chris,
this message usually appears when you try to use the same license on more devices. Is this the case?
Please mind that we have a one license per device policy.

Best regards,