Need Changes and Fixes in Existing Php Core base E commerce website and Android app

Changes and fixes to be done: 1) Auto mailer of Invoice need to be generated when order is placed successfully. for Paytm Payment gateway and Payumoney Payment gateway. Email notification for same would be needed at our end. Website : [login to view URL] 2) Admin Panel: Order to be updated correctly..at present cancel orders as well as successful orders both reflecting at [login to view URL] need to show seprately both successfull orders and cancel orders. 3) At present [login to view URL] page did not show Order id to user,transaction number, Total amount Only show there null values. We need to show all correct data to user when order is placed successfully. 4) User Profile need to show correct status i.e Confirmed or Pending of My Orders correctly when order placed successfully or not. 5) Need to remove Time duration on all Products detail page on web and app. 6) Cart page need to Show both Delivery and Pickup option for products based on category. 7) Android App crashes once the order place successfully. Need to fix same. 9) Paytm gateway not redirecting user to main website once order placed successfully. 10) Paytm payment integration need to be done with Android app,currently with website only.