I would surmise that you're missing Scenery Objects that are needed to make this Scenery functional.
Scroll down the Readme.txt File to Step 5 of the Installation... where it reads:
"5. If you have not already installed the EZ-Scenery and Rwy12 Static Objects Library
(look for a Static Objects Library layer in this list),
please download and install it."The List of Scenery Objects is after the Installation Instructions. Most Scenery packages (Especially the CalClassic/ Tom Gibson packages) require these Libraries to work properly.
You can find the Scenery Libraries in the SimV File Search.
Hope this helps!
Alan
NOTE: The FZAA Scenery is
not in the SimV Library; I found it over @ FlightSim.com.