Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /classes/MySQL.php:21
Stack trace:
#0 /classes/Db.php(75): MySQL->connect()
#1 /classes/Db.php(56): Db->__construct()
#2 /classes/Configuration.php(274): Db::getInstance()
#3 /config/config.inc.php(136): Configuration::loadConfiguration()
#4 /product.php(2): include('/config/config....')
#5 {main}
thrown in /classes/MySQL.php on line 21