Android SDK: 5th participant unable to join. Disable the "Allow Participant to Join" Popup

I am using Android sdk to build an application. I have trouble when more than 4 participants are trying to join the meeting. It doesn’t allow me.

The other issue I have is I would like to disable to popup “Allow user to join”.
I want any user to just click the button and directly join the meeting.

Any help would be appreciated. Thank you.