As you do not own the ejet for FS9/FSX you need to purchase -
https://www.feelthere.com/shop/p3d/embraer-v3-175-and-195-p3d4/
and/or
https://www.feelthere.com/shop/p3d/embraer-e-jets170-and-190-v3/
I've been a member of the feelThere support team for 15+ years. I've written most of the product manuals for feelThere ; including: majority of the Ejet v3 manual and the entirety of the Ejet v2, ERJ v2, the Wilco Airbus v2, EMB Phenom, Tower!2011, TRACON!2012, etc . In other words I'm connected and communicate closely to feelThere.
As I've been stating for some time - the upgrade is an update path for people that already own the FS9/FSX version and already have a unlock key. As you don't own the FS9/FSX version you don't have a key and therefore need to purchase the products listed above.