About Demo site not loading

I get a notification softrejected from Envato team, the items that I upload are wordpress theme.

Teams Envato say “sit demo is not loading!”

My demo site using the ip access usa and Indonesia, singapore can open normally.

Please try to access http://supermag.wpfastest.com if you also have a problem ?
And what a team Envato demo site not loading?

Thank you very much for your answer brother.