Warning: mysqli_connect(): (HY000/2002): Connection refused in /var/www/epizy_y2md/includes/config.php on line 6

Fatal error: Uncaught Error: Call to undefined function mysql_error() in /var/www/epizy_y2md/includes/config.php:6 Stack trace: #0 /var/www/epizy_y2md/includes/Menu.php(23): include() #1 /var/www/epizy_y2md/mypcr.php(22): include('/var/www/epizy_...') #2 {main} thrown in /var/www/epizy_y2md/includes/config.php on line 6