[Cannot download any of Orbx products for P3D V5]

Solved. 

It was my mistake. 

I had to select Preppar3D v5 on the top part of Central, but I mistakenly selected FSX and failed to download again and again

[Cannot download any of Orbx products for P3D V5]

I purchased Chaseplane, however whenever I try to download it on Orbx central, it says; "Error: It appears that your terrain.cfg is corrupt or missing. You may need to launch or reinstall the simulator to re-generate it"

I searched on google and tried reinstalling a couple of times, and uninstalling terrain.cfg then turning on P3D.

Even downloaded each file individually.

Still I cannot download it with the message.

What should I do in this case?

Is it possible to download manually?