form is broken

Hello,
I made an incorrect change in the contact form on the themeforest contact GRASSYWP. The image of the form in the theme is as follows: http://keenitsolution.com/products/wordpress/grassy/contact-us-1/

but it looks like this on the page I edit: http://test.nilsen.com.tr/contact-us-1/

How can I convert the form to its original form?

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