Template Demo Import Problem


I just bought one web site template from themeforest recently. ( https://themeforest.net/item/manufacto-factory-industrial-wordpress-theme/21296261 ) Seller company was YogsThemes.
I have completed all necessary website installations. Website is currently working properly. But problem is when i try to install demo of template to my web site im I can’t get any response (like successfully demo is uploaded or failed ffs.)

Can you please help me about this problem?

Best Regards.

You should contact the author https://themeforest.net/item/manufacto-factory-industrial-wordpress-theme/21296261/support