I recently installed v119 from 118, Like many others it changed my full version of FPSC to the trial version. I know there are other post with this imformation. But for the newcomers out there I thought I'd post how I fixed mine, so they can get to game making and not spend time trying to find the post. My first piece of advise is before you upgrade save a copy of your userdetails. That way you can just paste it to where its supposed to be.
Follow this path
C

thegamcreators>fpscreator>userdetails
Be sure you open the file as an admin.
the screen should have the user details for you to fill out
Name: Your Name
Serial: Your serial
Path: Your path
The path on my system is C:\thegamecreators\fpscreator\userdetails
Restart and test
I am at my work computer at the moment and something is telling me I am missing something in the userdetails. But once you open it it's self explanitory.