Fatal error: Uncaught Error: Class "Mautic\Tests\Api\MauticApiTestCase" not found in /home/deborapsol/laravel/vendor/mautic/api-library/tests/Api/CampaignsTest.php:15 Stack trace: #0 {main} thrown in /home/deborapsol/laravel/vendor/mautic/api-library/tests/Api/CampaignsTest.php on line 15