Nextcord music isn't playing

The bot is joining the voice channel but is not playing any music (no error).

I am using Nextcord and Wavelink.

(Yes, cog is loaded.)

import nextcord
from nextcord.ext import commands
import wavelink

class play(commands.Cog):
  def __init__(self, bot):
    self.bot = bot

  @commands.command()
  async def play(self, ctx: commands.Context, *, search: wavelink.YouTubeTrack):
    if not ctx.voice_client:
      vc: wavelink.Player = await ctx.author.voice.channel.connect(cls=wavelink.Player)
    elif getattr(ctx.author.voice, "channel", None):
      ctx.message.delete()
      embed = nextcord.Embed(title="Error", color= nextcord.Color.dark_red())
      embed.add_field(name="Error ID", value="01", inline=False)
      embed.add_field(name="Error Name", value="Non VC detected", inline=False)
      return await ctx.send(embed=embed)
    else:
      vc: wavelink.Player = ctx.voice_client
  
    await vc.play(search)

def setup(bot):
  bot.add_cog(play(bot))