Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[08004] [1040] Too many connections' in /opt/lampp/htdocs/vendor/yiisoft/yii2/db/Connection.php:600 Stack trace: #0 /opt/lampp/htdocs/vendor/yiisoft/yii2/db/Connection.php(600): PDO->__construct('mysql:host=loca...', 'root', 'Masuk*12345', NULL) #1 /opt/lampp/htdocs/vendor/yiisoft/yii2/db/Connection.php(542): yii\db\Connection->createPdoInstance() #2 /opt/lampp/htdocs/backend/controllers/LanguageController.php(31): yii\db\Connection->open() #3 /opt/lampp/htdocs/frontend/config/main.php(10): require('/opt/lampp/htdo...') #4 /opt/lampp/htdocs/index.php(13): require('/opt/lampp/htdo...') #5 {main} Next exception 'yii\db\Exception' with message 'SQLSTATE[08004] [1040] Too many connections' in /opt/lampp/htdocs/vendor/yiisoft/yii2/db/Connection.php:547 Stack trace: #0 /opt/lampp/htdocs/backend/controllers/LanguageController.php(31): yii\db\Connection->open() #1 /opt/lampp/htdocs/frontend/config/main.php(10): require('/opt/lampp/htdo...') #2 /opt/lampp/htdocs in /opt/lampp/htdocs/vendor/yiisoft/yii2/db/Connection.php on line 547