Warning: PDO::__construct(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /var/www/html/web/libraries/joomla/database/driver/pdo.php on line 295

Warning: PDO::__construct(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /var/www/html/web/libraries/joomla/database/driver/pdo.php on line 295
Error: Failed to start application: Failed to start the session because headers have already been sent by "/var/www/html/web/libraries/joomla/database/driver/pdo.php" at line 295.