The bot does not issue a role when clicking on the reaction, there are no errors, how to fix it?

Question

Python

Good day, the message is created and the reaction is added, but when you click on it, the role is not issued.
The code:

@commands.command(aliases = ["меропртиятие"])
@commands.has_permissions(administrator=True)
async def mp(self, ctx):
    emb = discord.Embed(title=f'Праздник ', description='Нажми на реакцию что бы получить роль',
                        colour=discord.Color.purple())

    message = await ctx.send(embed=emb)  
    await message.add_reaction('✅') 

    roles = discord.utils.get(message.guild.roles, id=839599224000610344) 

    check = lambda reaction, user: client.user != user 

    while True:
        reaction, user = await client.wait_for('reaction_add', check=check) 
        if str(reaction.emoji) == "✅":
            await user.add_roles(roles) 
            print('[SUCCESS] Пользователь {0.display_name} получил новую роль {1.name}'.format(user, roles)) 

            await user.send('TEST')