i have followed the documentation on,
http://doc.prestashop.com/display/PS16/First+steps+with+PrestaShop+1.6#FirststepswithPrestaShop1.6-FirststepswithPrestaShop1.6
And deleted all orders, products, customers, categories etc.
But I still see the below thing on my dashboard. My Site is set on maintance mode and I have not visited it for over 3 hours but it still sows online visitors and the sales orders.
I am not sure why, the site is new and I installed presta shop for the first time