I am facing some problems with an arduino nrf24l01 code, kindly give suggestions please

#include<SPI.h>
#include"RF24.h"
RF24 radio(7, 8);
byte addresses[][6] = {"0"};
struct package
{ float  vraj = 1;
};
typedef struct package;
package data;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  radio.begin();
  radio.setPALevel(RF24_PA_MAX);
  radio.setDataRate(RF24_1MBPS);
  radio.setChannel(115);
  radio.openReadingPipe(1, addresses[0]);
  radio.startListening();
  delay(100);
}

void loop() {
  Serial.println("i m top");
  delay(1000);
  radio.startListening();
  if (radio.available())
  { while (radio.available())
    {
      radio.write(&data, sizeof(data));
      Serial.println("i m here");   
     
    }
    radio.stopListening();
   analogWrite(3, data.vraj);
    Serial.println(data.vraj);

  }
  else
  { Serial.println("no");
  } delay(1000);
}

#include<SPI.h>
#include"RF24.h"
RF24 radio(7,8);
byte addresses[][6]={"0"};
struct package
{ float vraj=1;
};
typedef struct package;
package data;
void setup() {
  // put your setup code here, to run once:
Serial.begin(115200);
radio.begin();
radio.setPALevel(RF24_PA_MIN);
radio.setDataRate(RF24_1MBPS);
radio.setChannel(115);
radio.openWritingPipe(addresses[0]);
delay(100);
radio.startListening();
}

void loop() {
  // put your main code here, to run repeatedly:
radio.write(&data,sizeof(data));
Serial.println(data.vraj);
data.vraj=map(analogRead(3),0,1023,0,255);
delay(1000);

}