Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000]: General error: 2006 MySQL server has gone away' in /var/www/zend_apps/https/seilbahnen.org/443/_docroot_/lib/doctrine/vendor/doctrine-dbal/lib/Doctrine/DBAL/Connection.php:572 Stack trace: #0 /var/www/zend_apps/https/seilbahnen.org/443/_docroot_/lib/doctrine/vendor/doctrine-dbal/lib/Doctrine/DBAL/Connection.php(572): PDOStatement->execute() #1 /var/www/zend_apps/https/seilbahnen.org/443/_docroot_/lib/doctrine/Doctrine/ORM/Persisters/BasicEntityPersister.php(1211): Doctrine\DBAL\Connection->executeQuery('SELECT t0.id AS...', Array, Array) #2 /var/www/zend_apps/https/seilbahnen.org/443/_docroot_/lib/doctrine/Doctrine/ORM/UnitOfWork.php(1988): Doctrine\ORM\Persisters\BasicEntityPersister->loadOneToManyCollection(Array, Object(Cx\Model\ContentManager\Node), Object(Doctrine\ORM\PersistentCollection)) #3 /var/www/zend_apps/https/seilbahnen.org/443/_docroot_/lib/doctrine/Doctrine/ORM/UnitOfWork.php(1956): Doctrine\ORM\UnitOfWork->loadCollection(Object( in /var/www/zend_apps/https/seilbahnen.org/443/_docroot_/lib/doctrine/vendor/doctrine-dbal/lib/Doctrine/DBAL/Connection.php on line 572