Hello Team,
I’ve purchased grandesport magento 2 theme and set up everything according to provided documentation but on home page not showing only logo is showing please guide me on this. Following is the website
url: http://flighclub.baanicitycenter.co.in/
You should contact with the author of that theme. Only they can provide you the best assistance, otherwise hire a freelancer from Envato Studio to get your work done. Cheers. 
how to contact with author please help me
Go to your Download Page and click on the name of that theme and comment on their item landing page. They will give you instructions.
Contact with your item author with purchase code hope they help you.
if your support expired take extended license for author support or then hire freelancer for solved your problem.