Fatal error: Uncaught Error: Call to undefined function create_function() in /var/www/vhosts/kabelunie.nl/webspace/httpdocs/kabelunie.nl/wp-content/plugins/revslider/inc_php/framework/functions_wordpress.class.php:240
Stack trace:
#0 /var/www/vhosts/kabelunie.nl/webspace/httpdocs/kabelunie.nl/wp-content/plugins/revslider/revslider.php(77): UniteFunctionsWPRev::registerWidget()
#1 /var/www/vhosts/kabelunie.nl/webspace/httpdocs/kabelunie.nl/wp-settings.php(453): include_once('/var/www/vhosts...')
#2 /var/www/vhosts/kabelunie.nl/webspace/httpdocs/kabelunie.nl/wp-config.php(89): require_once('/var/www/vhosts...')
#3 /var/www/vhosts/kabelunie.nl/webspace/httpdocs/kabelunie.nl/wp-load.php(50): require_once('/var/www/vhosts...')
#4 /var/www/vhosts/kabelunie.nl/webspace/httpdocs/kabelunie.nl/wp-blog-header.php(13): require_once('/var/www/vhosts...')
#5 /var/www/vhosts/kabelunie.nl/webspace/httpdocs/kabelunie.nl/index.php(17): require('/var/www/vhosts...')
#6 {main}
  thrown in /var/www/vhosts/kabelunie.nl/webspace/httpdocs/kabelunie.nl/wp-content/plugins/revslider/inc_php/framework/functions_wordpress.class.php on line 240