Seriously, according to support tickets, when this happen, the investigation always show that something happened to the system.
Once activated, Gig Performer will never ask you for activation, provided that your system don’t change (i.e. background updates).
This is one of the reasons why we compiled various tips into a guide that will help people prepare their macOS computers for the stage. See here: [blog] Optimize your Mac for a gig
P.S.
What happened to this computer?
Link: 30-40 seconds load time - Cory Wong plugin - #16 by firstmiro