What wrong with my Arduino code?

Question

I have a rotary encoder (ppr = 600) and I want to write code to achieve the implementation to read current angle and direction.

Here is my code. I think it is correct but it donot have any output on the serial monitor.

#include <Servo.h>
// Rotary Encoder Connections
int encoderPinA = 2;  // Connect the CLK pin of the encoder to digital pin 2
int encoderPinB = 3;  // Connect the DT pin of the encoder to digital pin 3
// Variables
volatile int encoderPos = 0;   // Current position of the encoder
volatile int lastEncoderPos = 0;  // Previous position of the encoder
int clockwiseSteps = 0;  // Total clockwise steps turned
int counterclockwiseSteps = 0;  // Total counterclockwise steps turned
int latestOperation = 0;  // Latest rotation operation (1 for clockwise, -1 for counterclockwise)
int degreesPerStep = 360 / 600;  // Degrees per step for a 600-pulse rotary encoder
int aLastState = digitalRead(encoderPinA); // Default state of Pin A
void setup() {
    // Set encoder pins as inputs
    pinMode(encoderPinA, INPUT_PULLUP);
    pinMode(encoderPinB, INPUT_PULLUP);
// Attach interrupts to the encoder pins
attachInterrupt(digitalPinToInterrupt(encoderPinA), updateEncoder, CHANGE);
attachInterrupt(digitalPinToInterrupt(encoderPinB), updateEncoder, CHANGE);

// Initialize Serial communication
Serial.begin(9600);

}
void loop() {
    // Print the total degrees turned in both directions
    if (encoderPos != lastEncoderPos) {
        int rotation = encoderPos - lastEncoderPos;
        if (rotation > 0) {
            clockwiseSteps += rotation;
            latestOperation = 1;
        } else {
            counterclockwiseSteps += rotation;
            latestOperation = -1;
        }
        lastEncoderPos = encoderPos;
    int currentAngle;
    if (latestOperation == 1) {
        currentAngle = (clockwiseSteps - counterclockwiseSteps) * degreesPerStep;
        Serial.print(&quot;CW | &quot;);
    } else {
        currentAngle = (clockwiseSteps - counterclockwiseSteps) * degreesPerStep;
        Serial.print(&quot;CCW | &quot;);
    }
    Serial.println(currentAngle);
}

}
void updateEncoder() {
    int aState = digitalRead(encoderPinA); // Reads the "current" state of the outputA
   // If the previous and the current state of the outputA are different, that means a Pulse has occured
    if (aState != aLastState){

   // If the outputB state is different to the outputA state, that means the encoder is rotating clockwise
     if (digitalRead(encoderPinB) != aState) { 
       encoderPos++;
     } else {
      encoderPos--;
     }
   } 
   aLastState = aState; // Updates the previous state of the outputA with the current state
 }

Why there is no output? Seem like the interrupt function not working. How to fix it?