[milanosie]

Your saying

pawn Code:

new name[34];
format(name, len, BusStops[number][BusName], 0);
    return name;
}

While the callback is clearly

pawn Code:

forward GetNearestBus(playerid, name[], len);
public GetNearestBus(playerid, name[], len)

See what you'r doing wrong there?