Fatal error: Uncaught PDOException: SQLSTATE[HY000] [1040] Too many connections in /var/www/app/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:40 Stack trace: #0 /var/www/app/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php(40): PDO->__construct('mysql:host=mysq...', 'bio_balance', 'OTIxNTRiOGM3MzJ...', Array) #1 /var/www/app/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOMySql/Driver.php(40): Doctrine\DBAL\Driver\PDOConnection->__construct('mysql:host=mysq...', 'bio_balance', 'OTIxNTRiOGM3MzJ...', Array) #2 /var/www/app/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(356): Doctrine\DBAL\Driver\PDOMySql\Driver->connect(Array, 'bio_balance', 'OTIxNTRiOGM3MzJ...', Array) #3 /var/www/app/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(680): Doctrine\DBAL\Connection->connect() #4 /var/www/app/vendor/doctrine/orm/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php(930): Doctrine\DBAL\Connection->executeQuery('SELECT t0.id AS...', Array, Array) #5 /var/www/app/vendor/doctrine/orm/l in /var/www/app/app/Resources/views/base.html.twig on line 57