Users who are trying to activate their Timeline Maker software via website sometimes do not have an Installation code. Instead it is blank.
Cause: The Installation code is unique to the computer and must be used to complete the activation via website option.
Solution 1: The user needs to be and administrator. Log in as administrator and try again.
Solution 2: The software may already be activated on the computer, but the activation service is turned off and needs only to be turned back on. Go to this link for assistance: How to Restart the Licensing Service.
Solution 3: Antivirus software may be preventing the software from accessing this number. Try disabling the antivirus first and try again.