Discord ticket bot won't open a ticket?

When I try to open a new ticket, the error message in Discord is: "This interaction failed" and the error message in the code editor is: "Traceback (most recent call last):

, line 427, in _scheduled_task

await item.callback(interaction)

, line 35, in ticket

await interaction.defer(

AttributeError: 'Button' object has no attribute 'defer'

import discord

from discord.ext import commands

TOKEN = "DISCORD-BOTTOKEN"

bot = commands.Bot(command_prefix="!",

intents=discord.Intents.all(),

status=discord.Status.dnd)

async def change_bot_activity():

activity = discord.Activity(type=discord.ActivityType.watching, name="")

await bot.change_presence(activity=activity)

@bot.event

async def on_ready():

print("Bot is Ready!")

await change_bot_activity()

@bot.command(name="ticket")

@commands.has_permissions(administrator=True)

async def ticket(ctx):

embed = discord.Embed(

description="Press the button to create a new ticket!"

)

view = CreateButton()

await ctx.send(embed=embed, view=view)

class CreateButton(discord.ui.View):

def __init__(self):

super().__init__(timeout=None)

@discord.ui.button(label="Create Ticket", style=discord.ButtonStyle.blurple, emoji="🎫", custom_id="ticketopen")

async def ticket(self, button: discord.ui.Button, interaction: discord.Interaction):

# Confirm user interaction

await interaction.defer()

category = discord.utils.get(interaction.guild.categories, id=)

for ch in category.text_channels:

if ch.topic == f"{interaction.user.id} DO NOT CHANGE THE TOPIC OF THIS CHANNEL":

await interaction.followup.send("You already have a ticket: {0}".format(ch.mention), ephemeral=True)

return

r1 = discord.utils.get(interaction.guild.roles, id=)

overwrites = {

interaction.guild.default_role: discord.PermissionOverwrite(read_messages=False),

r1: discord.PermissionOverwrite(read_messages=True, send_messages=True, manage_messages=True),

interaction.user: discord.PermissionOverwrite(read_messages=True, send_messages=True),

interaction.guild.me: discord.PermissionOverwrite(read_messages=True, send_messages=True)

}

channel = await category.create_text_channel(

name=str(interaction.user),

topic=f"{interaction.user.id} DO NOT CHANGE THE TOPIC OF THIS CHANNEL!",

overwrites=overwrites

)

await channel.send(embed=discord.Embed(

title="Create Ticket",

description="Do not ping team members",

color=discord.Color.green()

))

await interaction.followup.send(

embed=discord.Embed(

description="Create a new ticket {0}".format(channel.mention),

color=discord.Color.white()

)

)

bot.run(TOKEN)