Found out that resampe.exe path was not set correctly. But now a new problem has come. Ortho isnt opening resample.exe as it tells it is. So no BGLs are created. Also, when I try to drag the inf files into resample.exe, nothing happends to the ADDON SCENERY\Scenery folder. It just isnt there, and an empty texture folder. SOLVED
Copied resample.exe to the Ortho4P3D master folder, set the path in the cfg. And it's now working. It is compiling the BGLs.