Fatal error: Uncaught Error: Class "yii\db\ActiveQuery" not found in /home/leasingm/public_html/public_html/vendor/creocoder/yii2-nested-sets/tests/models/TreeQuery.php:15 Stack trace: #0 {main} thrown in /home/leasingm/public_html/public_html/vendor/creocoder/yii2-nested-sets/tests/models/TreeQuery.php on line 15