Alarm clock displaying math problems

Hello.We have a problem with our LCD. It’s not displaying anything. Here’s our code. Thanks.

#include "Time.h"
#include "TimeAlarms.h"
#include <Wire.h>
#include "Bounce2.h"
#include <LiquidCrystal.h>

LiquidCrystal lcd(A0,A1,A2,A3,A4,A5);

#define buttonIncrease 2 
#define buttonDecrease 3 
#define buttonOK 8

#define alarmSpeaker 9

int Menuposition = 0;
int mathValOne = 0;
int mathValTwo = 0;
int mathValThree = 0;
int inputAnswer = 0;
int realAnswer = 0;
int toneOn = 0;
long previousMillis = 0;
int x = 0;
long interval = 70;
long interval2 = 500;

int debounceIncrease;
int debounceDecrease;


Bounce increase = Bounce();
Bounce decrease = Bounce();
Bounce OK = Bounce(); 

void Clock() {
  lcd.noDisplay();
  lcd.display();  
  lcd.setCursor(0,0);
  lcd.print(hour());
  printDigits(minute());
  printDigits(second());
  lcd.println("              ");
}

void printDigits(int digits) {
  lcd.print(":");
  if (digits < 10)
    lcd.print('0');
  lcd.print(digits);
}

void Alaarm() {
  Menuposition == 1;
}

void alarmNoiseOn(){  
  unsigned long currentMillis = millis();
  if(currentMillis - previousMillis > interval && x < 8) {
    previousMillis = currentMillis;  
    if (toneOn == 0) {
      toneOn = 2048;

    }
    else
      toneOn = 0;
    tone(9, toneOn);
    if(toneOn == 0)
      noTone(9);
    x++;
  }
  if(currentMillis - previousMillis > interval2 && x == 8) {
    previousMillis = currentMillis;  
    noTone(9);
    x = 0;
  }
}

void setup() {

lcd.begin(16, 2);
setTime(20,34,0,10,07,16);
Alarm.alarmRepeat(20,35,0, Alaarm); 
Wire.begin();

pinMode(buttonIncrease, INPUT);
pinMode(buttonDecrease, INPUT);
pinMode(buttonOK, INPUT);  
increase.attach(buttonIncrease);
increase.interval(10);
decrease.attach(buttonDecrease);
decrease.interval(10);
OK .attach(buttonOK);
OK .interval(10);

pinMode(alarmSpeaker, OUTPUT);

randomSeed(analogRead(2)); 
delay(1000);
}


void loop() {

while (Menuposition == 0) {
  lcd.setCursor(0, 0);
  Clock();
  Alarm.delay(1000); 
  lcd.noDisplay();
  lcd.display();
}

while(Menuposition == 1) {
    lcd.noDisplay();
    lcd.display();
    alarmNoiseOn();
    increase.update();
    decrease.update();
    int debounceIncrease = increase.read();
    int debounceDecrease = decrease.read();

    mathValOne = random(11, 15);
    mathValTwo = random(9, 15);
    mathValThree = random(20, 150);
    inputAnswer = (mathValOne * mathValTwo + mathValThree) - random(5, 10);

    realAnswer = mathValOne * mathValTwo + mathValThree;
    lcd.setCursor(0, 0);
    lcd.print(" Hello!");

    lcd.setCursor(0, 1);
    lcd.print(mathValOne);
    lcd.print("*");
    lcd.print(mathValTwo);
    lcd.print("+");
    lcd.print(mathValThree);
    lcd.print(" = ");
    lcd.print(inputAnswer);
    lcd.print(" ?");
    delay(100);
    if(debounceIncrease == HIGH) {
      inputAnswer++;
    }
    if(debounceDecrease == HIGH) {
      inputAnswer--; 
    }
    if(digitalRead(buttonOK) == HIGH && inputAnswer != realAnswer) {
      mathValOne = random(1, 10);
      mathValTwo = random(1, 10);
      mathValThree = random(1, 20);
    }
    if(digitalRead(buttonOK) == HIGH && inputAnswer == realAnswer) {
      noTone(9);
      delay(500);
      lcd.noDisplay();
      lcd.setCursor(0, 0);
      lcd.print(" Good Morning!");
      delay(5000);
      Menuposition = 0;
      mathValOne = 0;
      mathValTwo = 0;
      mathValThree = 0;
    }
  }
}

Do you really have the LCD hooked up to the analog inputs?

Does anything happen?

Before you reached this level of sophistication, you wrote a short test program that displayed "Hello World" on the LCD - does that still work?

Failing that, what do your debug prints tell you? Oh. Wait . . .

Wire.begin() and you are using A4/A5 for the LCD?

MarkT:
Wire.begin() and you are using A4/A5 for the LCD?

Did OP say anything about having an I2C LCD? If so, I missed it AND OP is using the wrong library.

If not, how will this information help?

No, but he is using I2C with something else, which will interfere with using the LCD on A4/A5.

KeithRB:
No, but he is using I2C with something else, which will interfere with using the LCD on A4/A5.

Too subtle for me before I've had enough caffeine.