Pulling in outside providers (Camroncade - Timezone)

I was using Laravel 5.3 and all was fine with what I was doing. I recently decided to use Spark so that I can have billing integrated with my app, but it broke an Autoloaded Service Provider. Note: I installed a fresh new install of Spark as I know Spark cannot be added to an existing app.

So let's start with the outside service provider: https://github.com/camroncade/timezone

Here's my code:

composer.json

"require": {
        "php": ">=5.6.4",
        "laravel/framework": "5.4.*",
        "laravel/tinker": "~1.0",
        "laravel/cashier": "~7.0",
        "laravel/spark": "*@dev",
        "camroncade/timezone": "0.1"
    },

config/app.php

'providers' => [

        /*
         * Laravel Framework Service Providers...
         */
        Illuminate\Auth\AuthServiceProvider::class,
        Illuminate\Broadcasting\BroadcastServiceProvider::class,
        Illuminate\Bus\BusServiceProvider::class,
        Illuminate\Cache\CacheServiceProvider::class,
        Illuminate\Foundation\Providers\ConsoleSupportServiceProvider::class,
        Illuminate\Cookie\CookieServiceProvider::class,
        Illuminate\Database\DatabaseServiceProvider::class,
        Illuminate\Encryption\EncryptionServiceProvider::class,
        Illuminate\Filesystem\FilesystemServiceProvider::class,
        Illuminate\Foundation\Providers\FoundationServiceProvider::class,
        Illuminate\Hashing\HashServiceProvider::class,
        Illuminate\Mail\MailServiceProvider::class,
        Illuminate\Notifications\NotificationServiceProvider::class,
        Illuminate\Pagination\PaginationServiceProvider::class,
        Illuminate\Pipeline\PipelineServiceProvider::class,
        Illuminate\Queue\QueueServiceProvider::class,
        Illuminate\Redis\RedisServiceProvider::class,
        Illuminate\Auth\Passwords\PasswordResetServiceProvider::class,
        Illuminate\Session\SessionServiceProvider::class,
        Illuminate\Translation\TranslationServiceProvider::class,
        Illuminate\Validation\ValidationServiceProvider::class,
        Illuminate\View\ViewServiceProvider::class,

        /*
         * Package Service Providers...
         */
        Laravel\Tinker\TinkerServiceProvider::class,

        /*
         * Application Service Providers...
         */
        Laravel\Spark\Providers\SparkServiceProvider::class,
        App\Providers\SparkServiceProvider::class,
        Laravel\Cashier\CashierServiceProvider::class,
        App\Providers\AppServiceProvider::class,
        App\Providers\AuthServiceProvider::class,
        // App\Providers\BroadcastServiceProvider::class,
        App\Providers\EventServiceProvider::class,
        App\Providers\RouteServiceProvider::class,

        /*
         * Outside Service Providers...
         */
        Camroncade\Timezone\TimezoneServiceProvider::class,

Of course I did run 'composer update' in the terminal and received this confirmation:

Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 1 install, 1 update, 0 removals
  - Updating league/flysystem (1.0.33 => 1.0.34) Downloading: 100%
  - Installing camroncade/timezone (0.1) Downloading: 100%
Writing lock file
Generating autoload files
> Illuminate\Foundation\ComposerScripts::postUpdate
> php artisan optimize
Generating optimized class loader
The compiled services file has been removed.

Here's my code that I'm trying to run that implements the outside service provider:

$user = DB::table('users')->where('id', Auth::user()->id)->first();

$formAttributes = array('class' => 'form-control', 'name' => 'timezone');

$timezoneForm = Timezone::selectForm($user->timezone, 'Set Time Zone', $formAttributes);

echo $timezoneForm;

I receive this error when the code above is ran:

ErrorException in f6fd7675b144e6b0466b63d9fb0082b5b039e7ca.php line 22: Undefined property: stdClass::$timezone (View: /home/vagrant/Code...

(error was truncated for privacy)

Please help!