How to stop music on DFPlayer mini

I want to play a song using DFPlayer Mini via Telegram bot. But I'm confused how to stop the song. Can you guys help me?

#include <DFPlayer_Mini_Mp3.h>
#include <SoftwareSerial.h>
#include "WiFiClientSecure.h"
#include "ESP8266WiFi.h"
#include "UniversalTelegramBot.h"
#include <ArduinoJson.h>

const char* ssid = "?"; // NAMA WIFI
const char* pass = "xxxx"; // PW WIFI
String BOTtoken = "xxxxxxx:xxxxxxxxxxxxxxx"; // your Bot Token (Get from Botfather)
const int chat_id = xxx;

X509List cert(TELEGRAM_CERTIFICATE_ROOT);

WiFiClientSecure client;
UniversalTelegramBot bot(BOTtoken, client);
int Bot_mtbs =1000; // time between scan messages
long Bot_lasttime; // last time messages scan has been done
bool Start = false;
bool lagu = false;

#define PIN_BUSY A0
SoftwareSerial mp3Serial(D3, D4); // RX, TX

void handleNewMessages(int numNewMessages) {
Serial.println("handleNewMessages");
Serial.println(String(numNewMessages));

for (int i=0; i<numNewMessages; i++) {
String chat_id = String(bot.messages[i].chat_id);
String text = bot.messages[i].text;

String from_name = bot.messages[i].from_name;
if (from_name == "") from_name = "Guest";


  if (text == "/start") {
  String welcome = "Hallo,selamat datang di sistem monitoring dan keamanan kamar batita, " + from_name + ".\n";
  welcome += "berikut ini adalah perintah-perintah yang dapat digunakan\n\n";    
  welcome += "/lagu : Request lagu\n";
  
  bot.sendMessage(chat_id, welcome, "Markdown");
}
 if (text == "/lagu") {
  lagu = true;
  Serial.println("Music Request");
  bot.sendMessage(chat_id, "musik diputar", "");
}

}
}

void setup () {

Serial.begin (115200);
configTime(0, 0, "pool.ntp.org"); // get UTC time via NTP
client.setTrustAnchors(&cert); // Add root certificate for api.telegram.org

pinMode(PIN_BUSY, INPUT);
Serial.println("Setting up software serial");
mp3Serial.begin (9600);
Serial.println("Setting up mp3 player");
mp3_set_serial (mp3Serial);
// Delay is required before accessing player. From my experience it's ~1 sec
delay(1000);
mp3_set_volume (15);

// Connect to Wi-Fi
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, pass);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi..");
}
Serial.println();
Serial.print("WiFi Connected");
Serial.print("IP Address: ");
Serial.println(WiFi.localIP());
}

void loop () {
if (millis() > Bot_lasttime + Bot_mtbs) {
int numNewMessages = bot.getUpdates(bot.last_message_received + 1);
while (numNewMessages) {
Serial.println("got response");
handleNewMessages(numNewMessages);
numNewMessages = bot.getUpdates(bot.last_message_received + 1);
}
if(lagu){
Serial.println("Stop");
mp3_stop ();
Serial.print("Busy: ");
Serial.println(analogRead(PIN_BUSY));
//delay(500);

  Serial.println("play next");
  mp3_next ();
  Serial.print("Busy: ");
  Serial.println(analogRead(PIN_BUSY));
 // delay (12000);

}
Bot_lasttime = millis();
}
}

Hello, do yourself a favour and please read How to get the best out of this forum and modify your post accordingly (including code tags and necessary documentation of your ask).


there are multiple libraries for the DFPlayer Mini, they all have a stop function