Problems merging 2 codes (blinking light and dfplayer)

Projects General Guidance
24

This is my best shot so far.
The serial monitor says DFPlayer mini online, but the only thing that happends is that the LED13 keeps light up when something is in the distance.

const byte led1 = 13;                 // LED pin NORMAL PIN2 BUT 13 FOR TEST
const byte trigger= 6;              // PIR sensor pin SENSOR REPLACED BY TRIGGER
bool isActivated = false;

#include "SoftwareSerial.h"
#include "DFRobotDFPlayerMini.h"
#include <PCM.h>                    //ADDED FROM DISTANCE CODE

#define MIN_DISTANCE 30             //ADDED FROM DISTANCE CODE
int echo = 5; // Pin to echo        //ADDED FROM DISTANCE CODE                         
int trigger = 6; // Pin for trigger //ADDED FROM DISTANCE CODE
int led1 = 13; // led onboard for test  //ADDED FROM DISTANCE CODE
unsigned long responsetime;             //ADDED FROM DISTANCE CODE
unsigned long distance;                 //ADDED FROM DISTANCE CODE

SoftwareSerial mySoftwareSerial(10, 11); // RX, TX
DFRobotDFPlayerMini myDFPlayer;

const unsigned long pauseTime = 6000;   // how long between PIR detections
const unsigned long blinkTime = 100;    // how fast to blink led

unsigned long startTime; // time PIR triggered
unsigned long lastTime; // last time we toggled led

void setup() {
  delay (5000);             //DELAY TIME FOR DEVICE TO START UP TO AVOID ERRORS
  pinMode(led1, OUTPUT);      // set led pin as output
  pinMode(trigger, INPUT);    // set sensor pin as input  SENSOR REPLACED BY TRIGGER

  pinMode (trigger, OUTPUT);  //ADDED FROM DISTANCE CODE                   
  pinMode (echo, INPUT);      //ADDED FROM DISTANCE CODE
  pinMode (led1, OUTPUT);     //ADDED FROM DISTANCE CODE

  mySoftwareSerial.begin(9600);
  Serial.begin(115200);

  Serial.println(F("\nInitializing DFPlayer..."));

  //Use softwareSerial to communicate with MP3
  if (!myDFPlayer.begin(mySoftwareSerial)) {
    Serial.println(F("Unable to begin:"));
    Serial.println(F("1.Please recheck the connection!"));
    Serial.println(F("2.Please insert the SD card!"));
    while (true);
  }
  Serial.println(F("DFPlayer Mini online."));

  //Set volume value (From 0 to 30)
  myDFPlayer.volume(30);
}

void loop() {

  digitalWrite (trigger, HIGH); // We send a 10 microsecond pulse           //ADDED FROM DISTANCE CODE
  delayMicroseconds (10);                                                   //ADDED FROM DISTANCE CODE                     
  digitalWrite (trigger, LOW);                                              //ADDED FROM DISTANCE CODE                
  responsetime = pulseIn (echo, HIGH); // And we wait for a pulse back      //ADDED FROM DISTANCE CODE
  distance = responsetime / 58; // Distance calculation in cm               //ADDED FROM DISTANCE CODE

  if (distance <MIN_DISTANCE) {
    digitalWrite (led1, HIGH);        
    delay (35);
    digitalWrite (led1, LOW);
  
  if ( isActivated ) {
    // blink led
    if ( millis() - lastTime >= blinkTime ) {
      lastTime = millis();
      digitalWrite(led1, !digitalRead(led1));
    }

    // check if we have been active long enough
    if ( millis() - startTime >= pauseTime ) {
      isActivated = false; // force PIR to trigger again or not
    }
  }

  if ( isActivated == false ) {
    // check PIR
    int pirSensor = digitalRead(sensor);
    if (pirSensor == HIGH) {
      isActivated = true;
      startTime = millis();
      Serial.println("Sensor Activated");
      Serial.println("DFPlayer Working...");
      myDFPlayer.play(1);
    }
  }
}
}