Alternator plus gear

I bought the car listed above it is the Kompressor model, which did not start from last six months. Problem is that when I start engine alternator warning comes on display. I changed that alternator two times but the message did not goes battery is new and connection. Also checked no two it is auto gear, also not working. When ever I start it goes around twenty meters then it stop working. What should I do with that? Kindly reply me as soon as possible.