Install OpenCart 3.0.3.7 and Theme and some modules

This website should be on my subdomain until its working
pattayakamagra.com/newopencart3

Install OpenCart 3.0.3.7 and Theme Fastor naturalcosmetics. setup theme I have the theme.
this is the theme
http://fastortheme.com/
http://fastortheme.com/naturalcosmetics/
I want change color on theme to blue.

And after have some more work but start with this.