Update index.js

index.js

@@ -105,7 +105,7 @@ async function ytmp4(url, quality = 'highestvideo') {
       const videoStream = await ytdl(ID, { quality: 'highestvideo' });
       let buffer = await streamToBuffer(videoStream)
       let upload = await uploadBuffer(buffer)
-      let format = ytdl.chooseFormat(data.formats, { quality: quality });
+      let format = ytdl.chooseFormat(data.formats, { filter: 'videoandaudio', quality: quality });
 
     if (format) {
       return {