Hello, My Name is Hugo

I have a mini cooper 2001 with automatic gear box, 1.6cc non S.

Recently I've got a problem with my car, i was unable to solve it.

In the morning i was preparing to go to work, so i get to my car and turn it on normally, then I've driven for like 10 km in traffic, the speed was 10-20 km/h, suddenly the engine goes off and refuse to start, so I've wait in the car for 5 minutes in the middle of the traffic rush, then i put the keys on and the car started again, then i drive for another 3 km and the engine goes off again and refuse to start.
So I called the breakdown guy to tow me to some place safe, I've open the hood and nothing seems strange, so i put the keys on and give the start, the engine goes on, but after 5 min on, the engine started to lose power and goes off again, refusing to start immediately.


i dont know what to do, plz help me