Need help in making a project pushbutton doesn't work

int RBG1[] {11, 12, 13};

const int BUZZ = 3;
const int sensor = 4;
const int sit = 2;

int sensorRead = 0;

void setup() {
  pinMode(RBG1[11, 12, 13], OUTPUT);
  pinMode(BUZZ, OUTPUT);
  pinMode(sensor, INPUT);
  pinMode(sit, INPUT);
}

void loop() {
  
  if (digitalRead(sensor) == HIGH) {
    scroll();
    Boom();
  }else {
    Scilence();
  }
  
  
  if (digitalRead(sit) == HIGH) {
    bob();
  }
  else No();

}
int i = 0;

  void scroll() {
  for (int i = 0; i<= 2; i++); {
    digitalWrite(RBG1[i], HIGH);
    delay(500);
    }
  }
  
  void Boom() {
    for (int i = 0; i< 8; i++){
    digitalWrite(BUZZ, HIGH);
    delay(random(200));
    digitalWrite(BUZZ, LOW);
    delay(random(200));
    
    }
  }
  
  void bob() {
    if (sit, HIGH) {
      delay(+60000);
      scroll();
      Boom();
      }
    }
    
  void Scilence() {
    digitalWrite(BUZZ, LOW);
    digitalWrite(RBG1[0, 1, 2], LOW);
  }
  
  void No() {
    digitalWrite(sit, LOW);
  }

Did you mean to use the comma operator there?

You can't simply invent syntax.

Ditto in setup

if (digitalRead(sit) == HIGH) {
is this better?

digitalWrite(13, LOW);
digitalWrite(12, LOW);
digitalWrite(11, LOW);

is this better? Thank you for your help!

I would be happier with

digitalWrite(RGB1[0], LOW);
digitalWrite(RGB1[1], LOW);
digitalWrite(RGB1[2], LOW);

How is the button wired?
A little wiring would help.