You can pause orders for the day or turn off orders for an undetermined amount of time from the "Settings" tab.
Pausing daily orders
You can pause orders for the rest of the day by disabling the "Daily Orders" switch seen above. This is to block any orders on your site for the current day and automatically turn you back on the following day.
Turn off orders
You can use the red "CLOSE RESTAURANT" button to deactivate all orders on your site. All orders will be blocked off until you return to open your restaurant using the green "OPEN RESTAURANT" button.