Use blynk button as an interrupt to the sensors

Need Help With My Project
5 
#define BLYNK_PRINT Serial


#include <ESP8266_Lib.h>
#include <BlynkSimpleShieldEsp8266.h>

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "eb072d5fba39400596b7084397e37597";

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "Nak";
char pass[] = "1234567890";

// Hardware Serial on Mega, Leonardo, Micro...
//#define EspSerial Serial1

// or Software Serial on Uno, Nano...
#include <SoftwareSerial.h>
SoftwareSerial EspSerial(2, 3); // RX, TX

// Your ESP8266 baud rate:
#define ESP8266_BAUD 9600

ESP8266 wifi(&EspSerial);
const int relay_pin = 12;
const int ldr_pin = 2;
const int lamp = 13;
void setup(){ 
  pinMode(ldr_pin,INPUT);
  pinMode(relay_pin,OUTPUT);
  pinMode(lamp,OUTPUT);  
  Serial.begin(9600);
   EspSerial.begin(ESP8266_BAUD);
  delay(10);
  Blynk.begin(auth, wifi, ssid, pass);}
void loop(){
   Blynk.run();
  int value_ldr = digitalRead(ldr_pin);
  Serial.println(value_ldr);
    if(value_ldr==HIGH){
    digitalWrite(relay_pin,HIGH);
    digitalWrite(lamp,HIGH);
    delay(10);
  
    }
      else {
    digitalWrite(relay_pin,LOW);
    digitalWrite(lamp,LOW);
   
  }
  
}

i have try this code is working fine without the blynk code inside. but when i include the blynk code the program seems to b not working. even the arduino board is not connected to the internet. i have follow from the example on code to connect to internet