Fatal error: Uncaught Error: Class 'Nikolag\Square\Tests\TestCase' not found in /home/demohatinco/public_html/petmates_backend/vendor/nikolag/laravel-square/tests/unit/OrderTest.php:16 Stack trace: #0 {main} thrown in /home/demohatinco/public_html/petmates_backend/vendor/nikolag/laravel-square/tests/unit/OrderTest.php on line 16