Simple Products add to cart not working.

Someone please help me fix this issue.
After upgrading to woocommerce 2.

My add to cart and total price not working in Single product page.

here is link to one of my simple product page.
https://www.amarstyle.com/shop/salwar-kameez-5002/

Please help me ASAP. my site is live.
I may have to bring it down till i can get it fixed.

Please HELP.

Thank you.

http://wordpress.org/extend/plugins/woocommerce/