Problem sending push notification to phone using Pushbullet

So I’ve already finished typing my codes and uploaded the code to my board but when I try to trigger the notification it doesn’t send it to my Pushbullet account. Can someone help me and explain how. I’m also using the Myduino IOT Training Kit.

#include <ESP8266WiFi.h>
String deviceId = "vBBC5515B87BCE3F";
const char* logServer = "api.pushingbox.com";
const char* ssid = "iPhone";
const char* password = "iphonewifi";
#include<LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
int Dout = analogRead(A0);
float vin = (Dout*0.00488);
float temp = vin*100;
int red = 8;
int green = 9;
int blue = 10;
int buzzer = 7;
const int cold = 30;
const int fire = 60;


void setup() {
  Serial.begin(115200);
  lcd.begin(16,2);
  delay(500);
  pinMode(red, OUTPUT);
  pinMode(green, OUTPUT);
  pinMode(blue, OUTPUT);
  //WIFI SETUP
  sendNotification("FIRE ALERT");

  

}

void loop() 

{
  int sensorValue = analogRead(A0);
  float temp = sensorValue*0.107422;
  Serial.print(temp);
  lcd.setCursor(0,0);
  lcd.print("Temperature=");
  lcd.print(temp);
  delay(1000);
  
  //RGB LIGHTING
  if(temp<cold)
  {
  digitalWrite(blue,HIGH);
  digitalWrite(green,LOW);
  digitalWrite(red,LOW);
  lcd.setCursor(0,1);
    lcd.print("COLD");
    noTone(buzzer);
  }
  else if(temp>fire)
  {
    digitalWrite(blue,LOW);
    digitalWrite(green,LOW);
    digitalWrite(red,HIGH);
    delay(100);
    digitalWrite(blue,LOW);
    digitalWrite(green,LOW);
    digitalWrite(red,LOW);
    delay(100);
    lcd.setCursor(0,1);
    lcd.print("FIRE");
    tone(buzzer,999);
  }
  else
  {
    digitalWrite(blue,LOW);
    digitalWrite(green,HIGH);
    digitalWrite(red,LOW);
    lcd.setCursor(0,1);
    lcd.print("NORM");
    noTone(buzzer);
  }

  

}
void sendNotification(String message)
{
 
  
  Serial.println("-connecting to Home Router SID: " + String(ssid));

  WiFi.begin(ssid, password);
  while(WiFi.status() != WL_CONNECTED)
  {
    delay(500);
    Serial.print(".");
  }
Serial.println();
Serial.println("- successfully connected");
digitalWrite(blue, HIGH);
delay(500);
digitalWrite(blue,LOW);

WiFiClient client;

Serial.println("- connecting to pushing server: " + String(logServer));
if (client.connect(logServer, 80))
{
  Serial.println("- succesfully connected");
  
 if(temp>fire)
 {
  String postStr = "devid=";
  postStr += String(deviceId);
  postStr += "&message_parameter=";
  postStr += String(message);
  postStr += "\r\n\r\n";

  Serial.println("- sending data...");

  client.print("POST /pushingboxHTTP\1.1/n");
  client.print("Host: api.pushingbox.com\n");
  client.print("Connection: close\n");
  client.print("Content-Type:application/x-www-form-urlencoded\n");
  client.print("Content-Length:  ");
  client.print(postStr.length());
  client.print("\n\n");
  client.print(postStr);
  
  }
  client.stop();
  Serial.println("- stopping the client");
}
}