Hooray theme featured image problem

Hi This is my website The Workout Magazine which runs on Hooray theme.

The first time i installed it the featured images came by fine, but now the featured images would not appear on the home page making it look bad. the even dont appear in the side bars of Popular posts and recent post.

The proper way it should look like is present on this website: https://www.nutritionsecrets.com/

Can any one help me how can i repair this problem.

Thanks