Fatal error: Uncaught PDOException: SQLSTATE[08004] [1040] Too many connections in /home/carde/www/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:27
Stack trace:
#0 /home/carde/www/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php(27): PDO->__construct('mysql:host=mysq...', 'carde', 'eccube4_pw', Array)
#1 /home/carde/www/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOMySql/Driver.php(22): Doctrine\DBAL\Driver\PDOConnection->__construct('mysql:host=mysq...', 'carde', 'eccube4_pw', Array)
#2 /home/carde/www/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(356): Doctrine\DBAL\Driver\PDOMySql\Driver->connect(Array, 'carde', 'eccube4_pw', Array)
#3 /home/carde/www/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(889): Doctrine\DBAL\Connection->connect()
#4 /home/carde/www/vendor/doctrine/orm/lib/Doctrine/ORM/Query/Exec/SingleSelectExecutor.php(50): Doctrine\DBAL\Connection->executeQuery('SELECT d0_.plg_...', Array, Array, NULL)
#5 /home/carde/www/vendor/doctrine/orm/lib/Doctrine/ORM/ in /home/carde/www/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractMySQLDriver.php on line 106