?avatar 命令发送两次

Question

该命令运行良好，但是它做了这个烦人的事情，它发送了两次嵌入

    
    @commands.command()
    async def avatar(self, ctx, *, member: discord.Member=None):
        if not member: 
            member = ctx.message.author 
        favatar = discord.Embed(title=f"{member.name}'s avatar", color=0x000000)
        favatar.set_footer(text=f"Requested by {ctx.author.name}#{ctx.author.discriminator}")

        favatar.set_image(url='{}'.format(member.avatar_url))
        await ctx.send(embed = favatar)
        await ctx.message.delete()