No Sound - RPi Cam Web Interface

Question

I have a project about streaming camera via Web Interface. I use the RPi Cam Web Interface.

I have an issue with the sound. I want to run .mp3 .ogg or .wav, code is work in thonny or therminal but when i use the userbuttons, the code works but the sound doesnt work. By the way userbuttons run the python code via .sh files.

I tried to run this command but it doesnt work too. ( sudo adduser www-data audio )

i am using pygame and i have written these codes which is following line;

import serial
import pygame
import time

ser=serial.Serial('/dev/serial0',115200,timeout=1)
ser.write(b"Hello World")
ser.close()

pygame.init()
asound = pygame.mixer.sound('/home/pi/02.ogg') # i used the .mp3 and .wav but the problem is not solved
achannel = pygame.mixer.Channel(1)
achannel.stop()
achannel.play(asound)
time.sleep(10)

does anyone know how to solve this problem ?