I sometimes got the error message "Gateway Authorization Module" when trying to open a QuickApp view on the mobile application. The screen stays white, and the QA's view can't be displayed. Sometime I don't even see the error message, the screen is just fully white.   A few minutes later, the QA's view is back again.   When the problem occurs, I can open the webpage on my computer and see the QuickApp's view, so the problem seems to only affect the mobile application.