done a few flights now on the fenix and now it just wont activated
Tried reinstalling nothing
Tried turning off antivirus nothing
Tried running as adimistor nothing
Disapointing EXE as a whole
Uses a ton of ram and Cpu somtimes as well 
All the best velocity
You may be able to find some help in this feedback thread for the Fenix A320
https://forums.flightsimulator.com/t/released-fenix-high-fidelity-a320-discussion/417613/
However, it is a long read!
I, also, would suggest that you contact Fenix directly using your log in account on their website and file a support ticket. They would be the best people to try and fix your particular issue… if you haven’t tried this already!