Fatal error: Uncaught PDOException: SQLSTATE[HY000] [2002] No connection could be made because the target machine actively refused it. in C:\xampp\htdocs\ocas_daerah\vendor\yiisoft\yii2\db\Connection.php:687 Stack trace: #0 C:\xampp\htdocs\ocas_daerah\vendor\yiisoft\yii2\db\Connection.php(687): PDO->__construct('mysql:host=loca...', 'root', 'Ocas2019Ok', NULL) #1 C:\xampp\htdocs\ocas_daerah\vendor\yiisoft\yii2\db\Connection.php(613): yii\db\Connection->createPdoInstance() #2 C:\xampp\htdocs\ocas_daerah\backend\controllers\LanguageController.php(31): yii\db\Connection->open() #3 C:\xampp\htdocs\ocas_daerah\opac\config\main.php(13): require('C:\\xampp\\htdocs...') #4 C:\xampp\htdocs\ocas_daerah\index.php(13): require('C:\\xampp\\htdocs...') #5 {main} Next yii\db\Exception: SQLSTATE[HY000] [2002] No connection could be made because the target machine actively refused it. in C:\xampp\htdocs\ocas_daerah\vendor\yiisoft\yii2\db\Connection.php:624 Stack trace: #0 C:\xampp\htdocs\ocas_daerah\backend\controllers\LanguageContro in C:\xampp\htdocs\ocas_daerah\vendor\yiisoft\yii2\db\Connection.php on line 624