Fatal error: Uncaught Error: Class 'Illuminate\Foundation\Testing\TestCase' not found in /home/gameserver/public_html/vendor/brozot/laravel-fcm/tests/FCMTestCase.php:5 Stack trace: #0 {main} thrown in /home/gameserver/public_html/vendor/brozot/laravel-fcm/tests/FCMTestCase.php on line 5