Fatal error: Uncaught Error: Class 'tests\codeception\frontend\AcceptanceTester' not found in /var/www/html/ng-crm/yiiapp/tests/codeception/frontend/acceptance/AboutCept.php:7 Stack trace: #0 {main} thrown in /var/www/html/ng-crm/yiiapp/tests/codeception/frontend/acceptance/AboutCept.php on line 7