Hi,
Create an account via Dashboard (Users > Add new) with administrator role http://prntscr.com/s3rc9m > provide us with username and password via the Private Content area http://prntscr.com/s5mao7 You can use any email for it.
If you do not know how to create FTP contact with your hosting provider, they will help you.
It is recommended to run import on fresh WordPress installation (You can use WordPress Database Reset plugin).
The new theme update, which will contain the import of this demo, will be released within 2-3 days.
Regards