don't have the option of Theem'on Importer in my wordpress

Hi
After installing the theme, I dont have the option of Theem’on Importer to run the demo theme. What shold I do?? where is the demo file?
my worpress:


the documentation:
please your help!!

Hello,

If you purchase this item from themeforest. Then you can contact with your item author here:

Hope they help you to solved your issue.

Thanks

No answer from him for days! and I must run the demo!

Keep patience today is Sunday hope they will reply you soon.

waiting since last week!

If your item have 6 month support and they didn’t reply to you a week the you can send that author a dispute
https://help.market.envato.com/hc/en-us/requests/new?ticket_form_id=170903

Even you can send them refund request also.

Envato authority will take care.