...

src/controllers/tankersController.js

@@ -111,7 +111,7 @@ exports.tankerBooking = async (req, reply) => {
     bookingCount = (bookingCount + 1) % 100;
     var booking_id = await Tankerbooking.findOne({ bookingid: bookingId})
     if(booking_id){
-      throw new Error('booking_id already exists');
+      reply.redirect(tankerBooking())
               }
     else {