Fatal error: Uncaught mysqli_sql_exception: Connection refused in /var/www/html/campus/ita/modelo/BD.php:6 Stack trace: #0 /var/www/html/campus/ita/modelo/BD.php(6): mysqli->__construct() #1 /var/www/html/campus/ita/controlador/ingresar.php(7): BD->__construct() #2 /var/www/html/campus/ita/index.php(11): include('...') #3 {main} thrown in /var/www/html/campus/ita/modelo/BD.php on line 6