Side bar setting

Hi, I am using this theme quite from some times. I feels great. I have created some great website with help of this theme. Just I am facing some issue. In post section my side bar comes below post, not like standard side bar. Any script or CSS code for this. Help me out.

Thanks

You can check https://foodfetish.in/poke-cherry/ sidebar from here.

The page I need help with: [log in to see the link]