Fatal error: Uncaught PDOException: SQLSTATE[HY000] [2002] Connection refused in /www/wwwroot/coolcngoods.com/fecmall/vendor/yiisoft/yii2/db/Connection.php:722 Stack trace: #0 /www/wwwroot/coolcngoods.com/fecmall/vendor/yiisoft/yii2/db/Connection.php(722): PDO->__construct() #1 /www/wwwroot/coolcngoods.com/fecmall/vendor/yiisoft/yii2/db/Connection.php(637): yii\db\Connection->createPdoInstance() #2 /www/wwwroot/coolcngoods.com/fecmall/vendor/yiisoft/yii2/db/Connection.php(1067): yii\db\Connection->open() #3 /www/wwwroot/coolcngoods.com/fecmall/vendor/yiisoft/yii2/db/Connection.php(1054): yii\db\Connection->getMasterPdo() #4 /www/wwwroot/coolcngoods.com/fecmall/vendor/yiisoft/yii2/db/Command.php(261): yii\db\Connection->getSlavePdo() #5 /www/wwwroot/coolcngoods.com/fecmall/vendor/yiisoft/yii2/db/Command.php(1181): yii\db\Command->prepare() #6 /www/wwwroot/coolcngoods.com/fecmall/vendor/yiisoft/yii2/db/Command.php(417): yii\db\Command->queryInternal() #7 /www/wwwroot/coolcngoods.com/fecmall/common/config/bootstrap.php(35): yii\db\Command->queryAll() #8 /www/wwwroot/coolcngoods.com/fecmall/appfront/web/index.php(24): require('...') #9 {main} Next yii\db\Exception: SQLSTATE[HY000] [2002] Connection refused in /www/wwwroot/coolcngoods.com/fecmall/vendor/yiisoft/yii2/db/Connection.php:648 Stack trace: #0 /www/wwwroot/coolcngoods.com/fecmall/vendor/yiisoft/yii2/db/Connection.php(1067): yii\db\Connection->open() #1 /www/wwwroot/coolcngoods.com/fecmall/vendor/yiisoft/yii2/db/Connection.php(1054): yii\db\Connection->getMasterPdo() #2 /www/wwwroot/coolcngoods.com/fecmall/vendor/yiisoft/yii2/db/Command.php(261): yii\db\Connection->getSlavePdo() #3 /www/wwwroot/coolcngoods.com/fecmall/vendor/yiisoft/yii2/db/Command.php(1181): yii\db\Command->prepare() #4 /www/wwwroot/coolcngoods.com/fecmall/vendor/yiisoft/yii2/db/Command.php(417): yii\db\Command->queryInternal() #5 /www/wwwroot/coolcngoods.com/fecmall/common/config/bootstrap.php(35): yii\db\Command->queryAll() #6 /www/wwwroot/coolcngoods.com/fecmall/appfront/web/index.php(24): require('...') #7 {main} Additional Information: Array ( [0] => HY000 [1] => 2002 [2] => Connection refused ) thrown in /www/wwwroot/coolcngoods.com/fecmall/vendor/yiisoft/yii2/db/Connection.php on line 648