Please help me guys

public class Calculator {


 public int add(int a, int b) {
 
return a + b ;
}

public int subtract(int a , int b) {
  return a - b ;
}

public int multiplay(int a , int b) {
  return a * b ;
}

public int divide(int a , int b) {

if (b == 0) {
  System.out.println("Error! Dividing by zero is not allowed.") ;
  
} else {
  
  return a / b ;
}
}

public int modulo(int a , int b) {
  
  if (b == 0) {
    
    System.out.println("Error! Dividing by zero is not allowed") ;
    
      return 0 ;
    
  } else {
    
    return a % b ;
  }
} 

public static void main(String[] args) {

	Calculator myCalculator = new Calculator();
        System.out.println(myCalculator.add(5,7));
        myCalculator.subtract(45, 11);
    
}

}

there is only one wrong and it says ;
Calculator.java:26: error: missing return statement
}
^
1 error

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