Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000] [2002] No such file or directory' in /var/www/html/portal/catalog/vendor/yiisoft/yii2/db/Connection.php:600 Stack trace: #0 /var/www/html/portal/catalog/vendor/yiisoft/yii2/db/Connection.php(600): PDO->__construct('mysql:host=loca...', 'root', 'DPaD2112@!DiY', NULL) #1 /var/www/html/portal/catalog/vendor/yiisoft/yii2/db/Connection.php(542): yii\db\Connection->createPdoInstance() #2 /var/www/html/portal/catalog/backend/controllers/LanguageController.php(31): yii\db\Connection->open() #3 /var/www/html/portal/catalog/frontend/config/main.php(10): require('/var/www/html/p...') #4 /var/www/html/portal/catalog/index.php(13): require('/var/www/html/p...') #5 {main} Next exception 'yii\db\Exception' with message 'SQLSTATE[HY000] [2002] No such file or directory' in /var/www/html/portal/catalog/vendor/yiisoft/yii2/db/Connection.php:547 Stack trace: #0 /var/www/html/portal/catalog/backend/controllers/LanguageController.php(31): yii\db\Connection->open() # in /var/www/html/portal/catalog/vendor/yiisoft/yii2/db/Connection.php on line 547