Unable to edit and see content of wordpress pages

Hi I am not able to see the content of my wordpress pages . Only header and footer is showing on my web pages . For your refrence i am sharing the link o url

When i am visiting these pages i am not able to see any content except header and footer part. Also i am not able to edit the content of pages from page editor because its showing blank screen and not loading the editor panel. See below screenshot

Click here to see screenshot – https://i.stack.imgur.com/oe8Yh.png

But the strange thing is that when i change the theme of my website then everything is working fine. So i have a doubt there is some problem in my current theme but i dont know whats the issue. Please help me in resolving the query.

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