Fatal error: Uncaught Error: Class "yii\db\ActiveRecord" not found in D:\xampp\htdocs\vhost\b2g.businessgateways.in\New folder (3)\b2g_cengex\models\BtgconfigurationsubcatmstTbl.php:24 Stack trace: #0 {main} thrown in D:\xampp\htdocs\vhost\b2g.businessgateways.in\New folder (3)\b2g_cengex\models\BtgconfigurationsubcatmstTbl.php on line 24