The Camera can not Open and the App can not be Closed

Expected Behavior

When opening the camera app, the camera should work and work properly and when closing the application, the app should be closed properly.

Actual behavior

When opening the camera app, the camera can not display the image, the camera should work properly and display the image properly and when closing the application, the app can not be properly closed, all this does not work properly.

How to Reproduce

Open Playstore

Install Camerakit Version 0.13.2

Open Camerakit Version 0.13.2

The Camera is not Working and the app can not be closed

Operating System: Android 5.1

Smartphone: Oppo a39

Recording Of The Bug