Studio Pass setup support

Excuseme, I have big problems too.
Could you tell me some solution?

  1. Once I succeed connecting between my PC(win10, Cubase Pro 9.5) and IPhone 7(iOS 12.4.1, Studio Pass),
    but I close the host app without logging out my IPhone app.
    Then I could never log in to Studio Pass on my IPhone, with following message “You are already in a session.”.

  2. When I installed Studio Pass on my IPhone, the app didn’t ask me to allow accessing IPhone’s camera or mic.
    So I can’t see the view of camera or sound of mic, but only blank view.

How can I solve these problem?
I’m very suffered from the imperfections of app X(