Mag theme preview not work correctly

Mag theme preview not work correctly.
I want to buy this theme but it seems to have problems.
Anyone know how i can solve this problem in preview or the colorlib team must solve this?
Theme url:

Hi there

That’s how it appears right now for me: Screenshot by Lightshot

Please note, this is an HTML template, not WordPress theme

I saw this theme months ago and it was shown correctly
Theme must show as below picture:


Not sure why but Hero area was hidden by this custom css: Screenshot by Lightshot if you remove it from the files slider will appear normally