Fatal error: Uncaught Error: Class 'yii\helpers\ArrayHelper' not found in /home/damianmisztal/public_html/damianmisztal/controllers/tests/codeception/config/functional.php:8 Stack trace: #0 {main} thrown in /home/damianmisztal/public_html/damianmisztal/controllers/tests/codeception/config/functional.php on line 8