Two livestream pages? and speakers' audio issues

[tania32]

I'm an artist, I just stared to use live stream and I'm having a confusion and an audio issue.
I'm using Free account, Procaster

I realized there are two livestream pages (see attached photo)
What are the different in between?

When I live with Procaster, page 1 is offline(Procaster doesn't connected with page 1); however, page 2 is online.

I want to live stream on page 1. not page 2.


Also, I want my voice and music to come out together when I live.
So, I set my Audio mixer as the photo that I attached.
My voice was find, but when I set the speakers' Audio, I keep hear beeping sound.
If I lower db, I cannot hear the beeping sound, but when I play music, the song is echoing.
by the way, I closed all my live stream pages.