I get an error when I log out of my game: (line 145 pygame.display.update(); pygame.error: video system not initialized)

[Hronox3]

import pygame

pygame.init()

screen = pygame.display.set_mode((1280, 748), pygame.FULLSCREEN)
pygame.display.set_caption("PixelVania")
icon = pygame.image.load('images/icon.png').convert_alpha()
pygame.display.set_icon(icon)
clock = pygame.time.Clock()

bg = pygame.image.load('images/bg.png').convert_alpha()
walk_left = [
pygame.image.load('Player_left/image1.png').convert_alpha(),
pygame.image.load('Player_left/image2.png').convert_alpha(),
pygame.image.load('Player_left/image3.png').convert_alpha(),
pygame.image.load('Player_left/image4.png').convert_alpha(),
]

walk_right = [
pygame.image.load('Player_Right/image5.png').convert_alpha(),
pygame.image.load('Player_Right/image6.png').convert_alpha(),
pygame.image.load('Player_Right/image7.png').convert_alpha(),
pygame.image.load('Player_Right/image8.png').convert_alpha(),
]

ghost = pygame.image.load('images/ghost.png').convert_alpha()
ghost_list_in_game = []

player_anim_count = 0
bg_x = 0

player_speed = 8
player_x = 100
player_y = 555

is_jump = False
jump_count = 9

bg_sound = pygame.mixer.Sound('sounds/bg.mp3')
bg_sound.play(-1)

ghost_timer = pygame.USEREVENT + 1
pygame.time.set_timer(ghost_timer, 3000)

label = pygame.font.Font('fonts/Lobster-Regular.ttf', 100)
lose_label = label.render('Игра окончена', False, (255, 255, 255))
restart_label = label.render('Играть снова', False, (0, 0, 0))
quit_label = label.render('Выйти', False, (0, 0, 0))
restart_label_rect = restart_label.get_rect(topleft=(390, 300))
quit_label_rect = quit_label.get_rect(topleft=(500, 450))

bullet = pygame.image.load('images/bullet.png').convert_alpha()
bullets = []
bullets_left = 15
gameplay = True

run = True
while run:
screen.blit(bg, (bg_x, 0))
screen.blit(bg, (bg_x + 1280, 0))

if gameplay:
    player_rect = walk_left[0].get_rect(topleft=(player_x, player_y))

    if ghost_list_in_game:
        for (i, el) in enumerate(ghost_list_in_game):
            screen.blit(ghost, el)
            el.x -= 10

            if el.x < -10:
                ghost_list_in_game.pop(i)

            if player_rect.colliderect(el):
                gameplay = False

    keys = pygame.key.get_pressed()

    if keys[pygame.K_a]:
        screen.blit(walk_left[player_anim_count], (player_x, player_y))
    else:
        screen.blit(walk_right[player_anim_count], (player_x, player_y))

    if keys[pygame.K_a] and player_x > 10:
        player_x -= player_speed
    elif keys[pygame.K_d] and player_x < 500:
        player_x += player_speed

    if not is_jump:
        if keys[pygame.K_SPACE]:
            is_jump = True
    else:
        if jump_count >= -9:
            if jump_count < 0:
                player_y += (jump_count ** 2) / 2
            else:
                player_y -= (jump_count ** 2) / 2
            jump_count -= 1
        else:
            is_jump = False
            jump_count = 9

    if player_anim_count == 3:
        player_anim_count = 0
    else:
        player_anim_count += 1

    bg_x -= 2
    if bg_x == -1280:
        bg_x = 0

    if bullets:
        for (i, el) in enumerate(bullets):
            screen.blit(bullet, (el.x, el.y))
            el.x += 4

            if el.x > 1285:
                bullets.pop(i)

            if ghost_list_in_game:
                for (index, ghost_el) in enumerate(ghost_list_in_game):
                    if el.colliderect(ghost_el):
                        ghost_list_in_game.pop(index)
                        bullets.pop(i)

else:
    screen.fill((87, 88, 89))
    screen.blit(lose_label, (380, 10))
    screen.blit(restart_label, restart_label_rect)
    screen.blit(quit_label, quit_label_rect)
    bg_sound.stop()

    mouse = pygame.mouse.get_pos()
    if restart_label_rect.collidepoint(mouse) and pygame.mouse.get_pressed()[0]:
        gameplay = True
        player_x = 100
        ghost_list_in_game.clear()
        bullets.clear()
        bullets_left = 15
        bg_sound.play(-1)

    if quit_label_rect.collidepoint(mouse) and pygame.mouse.get_pressed()[0]:
        run = False
        pygame.quit()

pygame.display.update()
clock.tick(15)

for event in pygame.event.get():
    if event.type == pygame.QUIT:
        run = False
        pygame.quit()

    if event.type == ghost_timer:
        ghost_list_in_game.append(ghost.get_rect(topleft=(1282, 540)))
    if gameplay and event.type == pygame.KEYUP and event.key == pygame.K_b and bullets_left > 0:
        bullets.append(bullet.get_rect(topleft=(player_x + 40, player_y + 20)))
        bullets_left -= 1

[mikehooper]

Your code is the issue. You are calling pygame.quit() then the code continues to the update() which no longer has a pygame instance to update.

Either move the pygame.quit outside the while run loop or force the code to exit after existing pygame.quit.