Fatal error: Uncaught Error: Class 'Tests\TestCase' not found in /home/appilogicx/public_html/marketing/vendor/rdok/elasticemail-php/tests/integration/ElasticEmailV2Test.php:13 Stack trace: #0 {main} thrown in /home/appilogicx/public_html/marketing/vendor/rdok/elasticemail-php/tests/integration/ElasticEmailV2Test.php on line 13