TRBO Checkout page not enabled

Hi Everyone,

We are trying to move to TRBO application. After I setup mode of sale, quick sale layout for trbo, I am able to see quick sale window and I am able to make an order. Then when I click "Pay", it goes to "Checkout" page. But the "Checkout" page is not enabled. 

At the right side of "Checkout" page, we have order with price and total amount. At the left side, everything is greyed out. Payment methods are associated with quick sale layout.

Can anyone help?