This Laravel route is returning different responses every time - where do I look for error?

This laravel route is returning the image sometimes and is returning an error page the other times. What could go wrong.

This route just returns the image like this:

public function image(Request $request) {
    return response()->file(storage_path('app/'.$request->input('path')));
}

I'm storing images using this code:

    $path = $request->p->store('public/images');
    Storage::setVisibility($path, 'public');

I don't know what's going wrong. I see this log when the route is requested.

NOTICE: PHP message: [2017-09-25 18:33:25] production.ERROR: Symfony\Component\HttpFoundation\File\Exception\FileNotFoundException: The file "/app/storage/app/public/images/YxNllK0iVKAxxUSCEhFHLo5sGZiXg5NNbGDbOVSL.jpeg" does not exist in /app/vendor/symfony/http-foundation/File/File.php:37

Here's the route in it's full glory:

http://ift.tt/2wRLxuz

This is definitely not because there's no image there. I can assure you the route works some of the times.

What could have gone wrong?

I'm using Laravel 5.4 on Google App Engine.

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