Mowayduino and nrf24l01 communication

Is there anybody that can communicate mowayduino robot ( http://moway-robot.com/en/mowayduino/que-es/ ) with nrf24l01 and Mirf library?

I have two parts: the mowayduino sending one string and an arduino uno with a nrf24l01 module receiving that string.

The source code for both is very simple:

MowayDuino:

#include "MowayduinoRobot.h"
#include <SPI.h>
#include <EEPROM.h>

mowayduinorobot robot;
unsigned char datos[8];

void RfDataReady();
void RfDataReady()
{}

void setup()
{
  robot.beginMowayduino();
  robot.beginRF(2,0x10);
  robot.On();
  datos[0] = 100;
  datos[1] = 101;
  datos[2] = 102;
  datos[3] = 103;
  datos[4] = 104;
  datos[5] = 105;
  datos[6] = 106;
  datos[7] = 107;
  delay(2000);
}

void loop()
{
    robot.Blueon();
    delay(500);
    if(robot.Send(0x20,datos) == 0)
    {
      robot.Blueoff();
      robot.Greenon();
      delay(500);
      robot.Greenoff();
    }
    else
    {
      robot.Blueoff();
      robot.Redon();
      delay(500);
      robot.Redoff();
    }
}

Arduino UNO:

#include <SPI.h>
#include <Mirf.h>
#include <nRF24L01.h>
#include <MirfHardwareSpiDriver.h>

byte direccion[] = {0x20, 0xc2, 0xc2, 0xc2, 0xc2};

void setup(){
  Serial.begin(9600);
  Mirf.spi = &MirfHardwareSpi;
  Mirf.init();
  Mirf.setRADDR(direccion);
   Mirf.payload = 10;
  Mirf.channel = 2;
  Mirf.config();
  Serial.println("Listening..."); 
}

void loop(){
  int indice;
  byte data[Mirf.payload];
  
  if(!Mirf.isSending() && Mirf.dataReady()){
    Serial.println("Got packet");
    
    Mirf.getData(data);
    for(indice = 0; indice < Mirf.payload; indice++) Serial.print((char)data[indice]);
    Serial.println();
  }
}

After several tests I only receive the string sometimes (with a long time between receptions) and I don’t know what more I have to do to achieve a real communication. The connections in Arduino UNO are correct because I can receive the string from another pair of arduino and nrf24l01 .