Fatal error: Uncaught Error: Call to undefined function create_function() in /customers/9/3/6/starshifter.be/httpd.www/wp-content/plugins/jamsession-post-types/jpt_widgets.php:6
Stack trace:
#0 /customers/9/3/6/starshifter.be/httpd.www/wp-content/plugins/jamsession-post-types/jamsession-post-types.php(51): require_once()
#1 /customers/9/3/6/starshifter.be/httpd.www/wp-settings.php(409): include_once('/customers/9/3/...')
#2 /customers/9/3/6/starshifter.be/httpd.www/wp-config.php(98): require_once('/customers/9/3/...')
#3 /customers/9/3/6/starshifter.be/httpd.www/wp-load.php(50): require_once('/customers/9/3/...')
#4 /customers/9/3/6/starshifter.be/httpd.www/wp-blog-header.php(13): require_once('/customers/9/3/...')
#5 /customers/9/3/6/starshifter.be/httpd.www/index.php(17): require('/customers/9/3/...')
#6 {main}
  thrown in /customers/9/3/6/starshifter.be/httpd.www/wp-content/plugins/jamsession-post-types/jpt_widgets.php on line 6