Why my oled display suddenly freezes while arduino is running code - arduino

Question

I recently tried to make a menu on 128x64 oled display I2C and arduino uno so I found this really good tutorial(https://youtu.be/HVHVkKt-ldc). I wrote code to make menu scroll using joystick than I added a little game, uploaded code to my arduino and it worked well. I played that game on arduino and after three days display started randomly freezing only way to fix that eas to reset the arduino but when i played game it never freezed, display was only freezing when I was scrolling through the menu. By the way I was using u8glib. If you have any questions I'll respond as quickly as possible. Please hel me to solve this problem.
I tried everything: I rewrote logic, I replaced joystick with buttons, I uploaded different programs i just don't know what to do.
here is my code, sorry that it is messy.
#include <U8glib.h>
U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_DEV_0|U8G_I2C_OPT_NO_ACK|U8G_I2C_OPT_FAST); // Fast I2C / TWI
const int NUM_ITEMS = 5;
// 'icon 1', 16x16px
const unsigned char epd_bitmap_icon_1 [] PROGMEM = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0x55, 0x77, 0x77,
0x7f, 0xff, 0x7f, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
// 'icon 2', 16x16px
const unsigned char epd_bitmap_icon_2 [] PROGMEM = {
0x00, 0x00, 0x01, 0x80, 0x02, 0x40, 0x02, 0xc0, 0x02, 0x40, 0x02, 0xc0, 0x02, 0x40, 0x02, 0xc0,
0x02, 0x40, 0x02, 0xc0, 0x02, 0x40, 0x04, 0x20, 0x06, 0x20, 0x07, 0xe0, 0x03, 0xc0, 0x00, 0x00
};
// 'icon 3', 16x16px
const unsigned char epd_bitmap_icon_3 [] PROGMEM = {
0x00, 0x00, 0x14, 0x00, 0x08, 0x00, 0x11, 0x00, 0x01, 0x0a, 0x01, 0x04, 0x01, 0x0a, 0x01, 0x00,
0x01, 0xf8, 0x02, 0x00, 0x04, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
const unsigned char epd_bitmap_icon_4 [] PROGMEM = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x60, 0x06,
0x01, 0x80, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
const unsigned char epd_bitmap_icon_5 [] PROGMEM = {
0x1f, 0xf8, 0x1f, 0xf8, 0x10, 0x08, 0x10, 0x08, 0x13, 0xc8, 0x09, 0x90, 0x04, 0x20, 0x02, 0x40,
0x02, 0x40, 0x05, 0xa0, 0x08, 0x10, 0x11, 0x88, 0x11, 0xc8, 0x13, 0xc8, 0x1f, 0xf8, 0x1f, 0xf8
};
const unsigned char epd_bitmap_frame [] PROGMEM = {
0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0,
0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x3f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xe0,
0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0
};
// Array of all bitmaps for convenience. (Total bytes used to store images in PROGMEM = 144)
void setup(void) {
u8g.setColorIndex(1);
pinMode(A0, INPUT);
pinMode(A1, INPUT);
pinMode(13, INPUT_PULLUP);
Serial.begin(9600);
}
const unsigned char* icons[NUM_ITEMS] = {
epd_bitmap_icon_1,
epd_bitmap_icon_2,
epd_bitmap_icon_3,
epd_bitmap_icon_4,
epd_bitmap_icon_5
};
char menu_items [NUM_ITEMS] [20] = {
{"Distance meter"},
{"Thermometer"},
{"Gyro"},
{"Game"},
{"Timer"}
};
int previous_it;
int selected_it = 0;
int next_it;
int xStick;
int yStick;
unsigned long sec;
char location = "menu";
byte btnC = 0;
boolean btn;
int x_cir = 32;
int y_cir = 64;
void stickValues(){
xStick = analogRead(A0);
yStick = analogRead(A1);
yStick = map(yStick, 0, 1023, -1, 6);
constrain(yStick, -1, 6);
xStick = map(xStick, 0, 1023, -1, 6);
constrain(xStick, -1, 6);
btn = !digitalRead(13);
}
void circle(){
u8g.drawLine(20, 32, 30, 32);
u8g.drawLine(59, 10, 69, 10);
u8g.drawLine(98, 32, 108, 32);
u8g.drawCircle(y_cir, x_cir, 4);
}
void game(){
stickValues();
if (millis() - sec > 50){
if(yStick < 2 && y_cir < 128){
y_cir += 4;
}
if(yStick > 4 && y_cir > 0){
y_cir -= 4;
}
if(xStick < 2 && x_cir > 0){
x_cir -= 4;
}
if(xStick > 4 && x_cir < 64){
x_cir += 4;
}
sec = millis();
}
}
void loop(void){
// logic to select item
stickValues();
if(btnC != 1){
if(xStick < 2 && millis() - sec > 200){
selected_it += 1;
if(selected_it == 4){selected_it = 0;}
sec = millis();
}
if(xStick > 4 && millis() - sec > 200){
selected_it -= 1;
if(selected_it == -1){selected_it = 4;}
sec = millis();
}
}
previous_it = (selected_it - 1);
if (previous_it < 0) {previous_it = 4;} // previous item would be below first = make it the last
next_it = (selected_it + 1);
if (next_it > 4) {next_it = 0;}
// end
// actions to begin the game
if(selected_it == 3 && btnC == 1){
if (millis() - sec > 50){
if(btn == 1){
btnC++;
if(btnC > 1){btnC = 0;}
}
game();
sec = millis();
}
}
// end
//serial things
// Serial.print("btn ");
// Serial.print(btn);
// Serial.print(" btnC ");
// Serial.print(btnC);
// Serial.print(" yStick ");
// Serial.print(yStick);
// Serial.print(" xStick ");
// Serial.print(xStick);
// Serial.print(" selected_it ");
// Serial.print(selected_it);
// Serial.print(" next_it ");
// Serial.println(next_it);
// button counter
if(btn == 1){
btnC++;
if(btnC > 1){btnC = 0;}
}
//end
u8g.firstPage();
do {
// game begin
if(selected_it == 3 && btnC == 1){circle();}
//
// menu begin
if(btnC == 0 ){
//previos item
u8g.setFont(u8g_font_7x14);
u8g.drawStr(26, 15, menu_items[previous_it]);
u8g.drawBitmapP( 4, 2, 16/8, 16, icons[previous_it]);
//selected item
u8g.setFont(u8g_font_7x14B);
u8g.drawStr(26, 37, menu_items[selected_it]);
u8g.drawBitmapP( 4, 24, 16/8, 16, icons[selected_it]);
//next item
u8g.setFont(u8g_font_7x14);
u8g.drawStr(26, 59, menu_items[next_it]);
u8g.drawBitmapP( 4, 46, 16/8, 16, icons[next_it]);
u8g.drawBitmapP( 0, 22, 128/8, 20, epd_bitmap_frame);
}
// menu end
} while( u8g.nextPage() );
}