Sound and audio problem streaming from android app to Youtube

I have purchased a standard annual license.
On the android app of manycam there’s an audio problem while streaming to Youtube: those live streams everytime have a terrible audio. I tried to re-install the app, to log in again, I even tried with other android devices and with other internet connections, but the problem still remains. It seems that this problem affects only live streamings from the android mobile app to Youtube, because when I streamed, for example, from the same app to Facebook the audio is ok, and during live streams from the desktop version of manycam to Youtube there isn’t any problem. How can I solve this issue? Thank you!