Video system not initialized even though I did pygame.init()

Question

I have seen all the other posts but I haven't had the same problems as the others. All of them forgot to put pygame.init() but I remembered. I simply can't think of what I did wrong. I will put the important bits of code below

    import pygame
    #A bunch of variables
    def checkWin():
  if board[0] == board[1] == board[2] or board[3] == board[4] == board[5] or board[6] == board[7] == board[8] or board[0] == board[3] == board[6] or board[2] == board[4] == board[7] or board[3] == board[5] == board[8] or board[0] == board[4] == board[8] or board[2] == board[4] == board[6]:
    if turn == 'X':
      window.blit(O_WIN, (WIDTH / 6, HEIGHT / 2))
      pygame.time.wait(5000)
      pygame.quit()
    if turn == 'O':
      window.blit(X_WIN, (WIDTH / 6, HEIGHT / 2))
      pygame.time.wait(5000)
      pygame.quit()


run = True
while run:
  #Set background
  window.fill(BLUE)

  #Draw lines
  pygame.draw.line(window, DARK_BLUE, (0, WIDTH / 3), (HEIGHT, WIDTH / 3), LINE_THICKNESS)
  pygame.draw.line(window, DARK_BLUE, (0, WIDTH / 3 * 2), (HEIGHT, WIDTH / 3 * 2), LINE_THICKNESS)
  pygame.draw.line(window, DARK_BLUE, (HEIGHT / 3, 0), (HEIGHT / 3, WIDTH), LINE_THICKNESS)
  pygame.draw.line(window, DARK_BLUE, (HEIGHT / 3 * 2, 0), (HEIGHT / 3 * 2, WIDTH), LINE_THICKNESS)

  #Click function
  if pygame.mouse.get_pressed()[0] == True:
    pos = pygame.mouse.get_pos()
    pos = (pos[0] // xpos, pos[1] // ypos)
    if turn == 'X':
      if pos == (0, 0):
        if board[0] == '':
          X00 = True
          board[0] = turn
          turn = 'O'
      elif pos == (1, 0):
        if board[1] == '':
          X10 = True
          board[1] = turn
          turn = 'O'
      elif pos == (2, 0):
        if board[2] == '':
          X20 = True
          board[2] = turn
          turn = 'O'
      elif pos == (0, 1):
        if board[3] == '':
          X01 = True
          board[3] = turn
          turn = 'O'
      elif pos == (1, 1):
        if board[4] == '':
         X11 = True
         board[4] = turn
         turn = 'O'
      elif pos == (2, 1):
        if board[5] == '':
         X21 = True
         board[5] = turn
         turn = 'O'
      elif pos == (0, 2):
        if board[6] == '':
          X02 = True
          board[6] = turn
          turn = 'O'
      elif pos == (1, 2):
        if board[7] == '':
         X12 = True
         board[7] = turn
         turn = 'O'
      elif pos == (2, 2):
        if board[8] == '':
          X22 = True
          board[8] = turn
          turn = 'O'
      pygame.time.wait(250)
    else:
      if pos == (0, 0):
        if board[0] == '':
          O00 = True
          board[0] = turn
          turn = 'X'
      elif pos == (1, 0):
        if board[1] == '':
          O10 = True
          board[1] = turn
          turn = 'X'
      elif pos == (2, 0):
        if board[2] == '':
         O20 = True
         board[2] = turn
         turn = 'X'
      elif pos == (0, 1):
        if board[3] == '':
          O01 = True
          board[3] = turn
          turn = 'X'
      elif pos == (1, 1):
        if board[4] == '':
         O11 = True
         board[4] = turn
         turn = 'X'
      elif pos == (2, 1):
        if board[5] == '':
         O21 = True
         board[5] = turn
         turn = 'X'
      elif pos == (0, 2):
        if board[6] == '':
          O02 = True
          board[6] = turn
          turn = 'X'
      elif pos == (1, 2):
        if board[7] == '':
          O12 = True
          board[7] = turn
          turn = 'X'
      elif pos == (2, 2):
        if board[8] == '':
         O22 = True
         board[8] = turn
         turn = 'X'
      pygame.time.wait(250)
  
  #show X's
  if X00:
    window.blit(X_OBJECT, (WIDTH / 50, 0))
  if X10:
    window.blit(X_OBJECT, (WIDTH / 50 + WIDTH / 3, 0))
  if X20:
    window.blit(X_OBJECT, (WIDTH / 50 + WIDTH / 3 * 2, 0))
  if X01:
    window.blit(X_OBJECT, (WIDTH / 50, HEIGHT / 3))
  if X11:
    window.blit(X_OBJECT, (WIDTH / 50 + WIDTH / 3, HEIGHT / 3))
  if X21:
    window.blit(X_OBJECT, (WIDTH / 50 + WIDTH / 3 * 2, HEIGHT / 3))
  if X02:
    window.blit(X_OBJECT, (WIDTH / 50, HEIGHT / 3 * 2))
  if X12:
    window.blit(X_OBJECT, (WIDTH / 50 +  WIDTH / 3, HEIGHT / 3 * 2))
  if X22:
    window.blit(X_OBJECT, (WIDTH / 50 + WIDTH / 3 * 2, HEIGHT / 3 * 2))
  
  #Show O's
  if O00:
    window.blit(O_OBJECT, (WIDTH / 50, 0))
  if O10:
    window.blit(O_OBJECT, (WIDTH / 50 + WIDTH / 3, 0))
  if O20:
    window.blit(O_OBJECT, (WIDTH / 50 + WIDTH / 3 * 2, 0))
  if O01:
    window.blit(O_OBJECT, (WIDTH / 50, HEIGHT / 3))
  if O11:
    window.blit(O_OBJECT, (WIDTH / 50 + WIDTH / 3, HEIGHT / 3))
  if O21:
    window.blit(O_OBJECT, (WIDTH / 50 + WIDTH / 3 * 2, HEIGHT / 3))
  if O02:
    window.blit(O_OBJECT, (WIDTH / 50, HEIGHT / 3 * 2))
  if O12:
    window.blit(O_OBJECT, (WIDTH / 50 +  WIDTH / 3, HEIGHT / 3 * 2))
  if O22:
    window.blit(O_OBJECT, (WIDTH / 50 + WIDTH / 3 * 2, HEIGHT / 3 * 2))

  #Detect a winner
  checkWin()

  #Refreshes screen
  pygame.display.flip()
  #When X is pressed window closes
  for event in pygame.event.get():
    if event.type == pygame.QUIT:
      run = False
pygame.quit()

I AM AWARE IT IS TRASH! Please don't focus on the fact that I probably did it the longest way possible when I could have just done nested for loops or something. I wanted to do something easier. But anyways, can any of you help? I also used replit so it is not me installing something incorrectly.