when i type /help i get this error “discord.ext.commands.errors.CommandNotFound: Command “help” is not found”

@bot.slash_command(name="help", description="Get help via a helpful video!")
async def help_command(ctx: discord.ApplicationContext):
    user_mention = ctx.author.mention
    help_embed = discord.Embed(title="Help Video",
                               description=f"{user_mention}, here is the help video you requested:",
                               color=discord.Color.blue())
    help_embed.add_field(
        name="Watch Video",
        value="[Click here to watch](https://cdn.discordapp.com/attachments/993834541103976449/1193685361369563176/SPOILER_JOSH-1.mp4)",
        inline=False
    )
    await ctx.respond(embed=help_embed)

when i do /help command it should mention the user and send the video