Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away in /var/www/publishwall_new/applications/application/libraries/Doctrine/DBAL/Connection.php:1038 Stack trace: #0 /var/www/publishwall_new/applications/application/libraries/Doctrine/DBAL/Connection.php(1038): PDO->rollBack() #1 /var/www/publishwall_new/applications/application/libraries/Doctrine/ORM/UnitOfWork.php(345): Doctrine\DBAL\Connection->rollBack() #2 /var/www/publishwall_new/applications/application/libraries/Doctrine/ORM/EntityManager.php(355): Doctrine\ORM\UnitOfWork->commit() #3 /var/www/publishwall_new/applications/application/controllers/wall/wallpage.php(361): Doctrine\ORM\EntityManager->flush() #4 /var/www/publishwall_new/system/core/CodeIgniter.php(359): Wallpage->tagged() #5 /var/www/publishwall_new/index.php(237): require_once('/var/www/publis...') #6 {main} thrown in /var/www/publishwall_new/applications/application/libraries/Doctrine/DBAL/Connection.php on line 1038