Home › Forums › SharewareOnSale Deals Discussion › Corel AfterShot 3 / Nov 27 2016 › Reply To: Corel AfterShot 3 / Nov 27 2016 Feb 24, 2017 at 7:29 pm #7256009 Quote John HGuest Once I have installed the software I get a message saying Time’s up with an activate now box, whenever I click the box to activate I get the message ❗ Error: Invalid Serial Number.