w090n20 terragit scenery problem

[naplesAPF]

Don't know if this is the place to post this question, but am trying to use TerraGit scenery w090n20 for Florida and when I try to start FG at KTTS airport FG crashes.
Must be something wrong with the scenery at KTTS? can't startup at KTTS, when starting to load scenery FG crashes, also when trying to fly over KTTS FG crashes.
Only other thing I found is that when I took all the city files (I guess they are osm2city files??) out of the 090n20 > w081n28 folder, then the terragit scenery works at KTTS.

I know nothing about this so if someone would check this am sure ppl like me would be greatful.