Camera is closed exception on takePicture()

Hi,
I am using camera2 in my app. Generally camera works fine for most of the users but for some users when they try capture image an exception is thrown with message "Camera is closed."
While this error occurs camera is actually actively working on UI, so not sure why this error is happening.

Code I am using to capture image is :
```
imageCapture.takePicture(outputFileOptions, ContextCompat.getMainExecutor(getContext()),
new ImageCapture.OnImageSavedCallback() {
@Override
public void onImageSaved(ImageCapture.OutputFileResults outputFileResults) {

imagePath = FileProvider
.getUriForFile(getContext(), getContext().getPackageName() + ".provider", imageFile);
checkImageOrientation();
}

@Override
public void onError(ImageCaptureException error) {
// error.getMessage() --> Camera is closed.
}
});
```

Please let me know how to fix this.
Thank you!

Start at the ImageCapture.takePicture call and its OnImageSavedCallback.onError handler, then investigate the camera lifecycle around the reported "Camera is closed" exception. Reproduce the failure for affected users and determine the conditions that close the camera while it remains active in the UI; done means the cause and a verified fix are identified.

Written by the indexing model from the issue text.