Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /var/www/vhosts/steffenmaas.nl/httpdocs/include/database/class.database.php:22
Stack trace:
#0 /var/www/vhosts/steffenmaas.nl/httpdocs/include/database/class.database.php(347): MySQLDB->MySQLDB()
#1 /var/www/vhosts/steffenmaas.nl/httpdocs/include/class.session.php(36): include('/var/www/vhosts...')
#2 /var/www/vhosts/steffenmaas.nl/httpdocs/include/view/_general/header.php(2): include('/var/www/vhosts...')
#3 /var/www/vhosts/steffenmaas.nl/httpdocs/index.php(1): include('/var/www/vhosts...')
#4 {main}
  thrown in /var/www/vhosts/steffenmaas.nl/httpdocs/include/database/class.database.php on line 22