Images not shown

I bought renge theme and activated to my blog but i found that when i upload featured image it is not shown in the webpage. But Default posts featured images are shown properly, What would be the problem. I am very new to GHOST. I installed ghost through Btinami. Please give me a solution for this.

My blog URL is

Thanks and regards

If you’re serving your site using https, the URL configured in Ghost must be https

Run ghost config set url and then ghost restart to configure Ghost properly

Thanks for your response,

But when i try to run config set, iam getting this error

ghost config set url
Working directory is not a recognisable Ghost installation.
Run ghost config set again within a folder where Ghost was installed with Ghost-CLI.

can you mention the root directory here…

Please don’t cross post questions.

You can find the installation directory by running ghost ls

Thanks for your response…