Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /var/www/vhosts/tri-co.nl/httpdocs/functions/ConnectivityManager.php:17 Stack trace: #0 /var/www/vhosts/tri-co.nl/httpdocs/index.php(5): ConnectivityManager->__construct() #1 {main} thrown in /var/www/vhosts/tri-co.nl/httpdocs/functions/ConnectivityManager.php on line 17