taras24,
Now I know what's the problem. When installing FCLP sceneries (and a few other sceneries, according to your Scenery.cfg file) you double-clicked on them, so FSX stored their paths with this additional part
\scenery, whereas any scenery already has two folders (scenery and texture) inside its main folder and there's no need to specify them additionally.
I'd suggest you first uninstall them and then install again clicking their folders
once. That's it!