Control DOIT ESP32 DevKit V1 using Blynk app

I'm a beginner and I'm working on a project to light an LED using DOIT ESP32 devkit v1. I want to turn on and off the LED using a phone app via wifi (using Blynk application). I'm using the following code on Arduino IDE (version 1.8.13):

#define BLYNK_PRINT Serial #define LED 2 #include <WiFi.h> #include <WiFiClient.h> #include <BlynkSimpleEsp32.h> // You should get Auth Token in the Blynk App. // Go to the Project Settings (nut icon). char auth[] = "..."; // Your WiFi credentials. // Set password to "" for open networks. char ssid[] = "..."; char pass[] = "..."; void setup() { pinMode(LED, OUTPUT); pinMode(LED, HIGH); Serial.begin(115200); delay(10); Serial.print("Connecting to "); Serial.println(ssid); WiFi.begin(ssid, pass); int wifi_ctr = 0; while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println("WiFi connected"); Blynk.begin("Your auth token key", ssid, pass); } void loop(){ Blynk.run(); } 

The connection to the wifi succeeded, But when I press the serial monitor button I get an error saying "Invalid auth token"

I don't understand what am I doing wrong, I've check the auth key few times, that's the right one. In the Blynk project I've chose ESP32 Dev Kit and in the Arduino IDE I chose DOIT ESP32 Dev Kit V1 along with port COM4 (I've made sure that's the right one). I think the problem is that I'm not using Blynk right, What do I need to do?

Thank you.