Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000] [2013] Lost connection to MySQL server at 'reading initial communication packet', system error: 2' in /var/www/html/demo/public/demo/demo.php:28 Stack trace: #0 /var/www/html/demo/public/demo/demo.php(28): PDO->__construct('mysql:host=127....', 'demo_user', 'demo_pass') #1 /var/www/html/demo/public/index.php(16): include('/var/www/html/d...') #2 {main} thrown in /var/www/html/demo/public/demo/demo.php on line 28