Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000]: General error: 2013 Lost connection to MySQL server during query' in /var/www/html/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php:852 Stack trace: #0 /var/www/html/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(852): PDO->query('SELECT s0_.id A...') #1 /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/Query/Exec/SingleSelectExecutor.php(50): Doctrine\DBAL\Connection->executeQuery('SELECT s0_.id A...', Array, Array, NULL) #2 /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/Query.php(321): Doctrine\ORM\Query\Exec\SingleSelectExecutor->execute(Object(Doctrine\DBAL\Connection), Array, Array) #3 /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/AbstractQuery.php(962): Doctrine\ORM\Query->_doExecute() #4 /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/AbstractQuery.php(917): Doctrine\ORM\AbstractQuery->executeIgnoreQueryCache(NULL, NULL) #5 /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/AbstractQuery.php(759): Doctrine\ORM\Abs in /var/www/html/vendor/doctrine/dbal/lib/Doctrine/DBAL/DBALException.php on line 131