An exception occured in driver: SQLSTATE[HY000] [2002] Connection timed out<br/><pre>#0 /var/www/html/www.high-learning.com/releases/feature-WEB-lab-display-8/vendor/doctrine/dbal/lib/Doctrine/DBAL/DBALException.php(145): Doctrine\DBAL\Driver\AbstractMySQLDriver->convertException('An exception oc...', Object(Doctrine\DBAL\Driver\PDOException))
#1 /var/www/html/www.high-learning.com/releases/feature-WEB-lab-display-8/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOMySql/Driver.php(47): Doctrine\DBAL\DBALException::driverException(Object(Doctrine\DBAL\Driver\PDOMySql\Driver), Object(Doctrine\DBAL\Driver\PDOException))
#2 /var/www/html/www.high-learning.com/releases/feature-WEB-lab-display-8/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(360): Doctrine\DBAL\Driver\PDOMySql\Driver->connect(Array, 'highlearning', 'JhjUZxsAAZfhKHB...', Array)
#3 /var/www/html/www.high-learning.com/releases/feature-WEB-lab-display-8/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(429): Doctrine\DBAL\Connection->connect()
#4 /var/www/html/www.high-learning.com/releases/feature-WEB-lab-display-8/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(389): Doctrine\DBAL\Connection->getDatabasePlatformVersion()
#5 /var/www/html/www.high-learning.com/releases/feature-WEB-lab-display-8/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(328): Doctrine\DBAL\Connection->detectDatabasePlatform()
#6 /var/www/html/www.high-learning.com/releases/feature-WEB-lab-display-8/lib/bootstrap.php(280): Doctrine\DBAL\Connection->getDatabasePlatform()
#7 /var/www/html/www.high-learning.com/releases/feature-WEB-lab-display-8/lib/bootstrap.php(160): AppBootstrap->loadDoctrine(Object(Silex\Application))
#8 /var/www/html/www.high-learning.com/releases/feature-WEB-lab-display-8/lib/bootstrap.php(99): AppBootstrap->init(true, true, true)
#9 /var/www/html/www.high-learning.com/releases/feature-WEB-lab-display-8/index.php(36): AppBootstrap->__construct('prod')
#10 {main}<pre>