Fatal error: Uncaught Error: Call to undefined function create_function() in /customers/0/6/d/uppsalavanstern.se/httpd.www/wp-content/plugins/twitter-tracker/twitter-tracker.php:88
Stack trace:
#0 /customers/0/6/d/uppsalavanstern.se/httpd.www/wp-content/plugins/twitter-tracker/twitter-tracker.php(432): TwitterTracker->__construct()
#1 /customers/0/6/d/uppsalavanstern.se/httpd.www/wp-settings.php(391): include_once('/customers/0/6/...')
#2 /customers/0/6/d/uppsalavanstern.se/httpd.www/wp-config.php(90): require_once('/customers/0/6/...')
#3 /customers/0/6/d/uppsalavanstern.se/httpd.www/wp-load.php(37): require_once('/customers/0/6/...')
#4 /customers/0/6/d/uppsalavanstern.se/httpd.www/wp-blog-header.php(13): require_once('/customers/0/6/...')
#5 /customers/0/6/d/uppsalavanstern.se/httpd.www/index.php(17): require('/customers/0/6/...')
#6 {main}
  thrown in /customers/0/6/d/uppsalavanstern.se/httpd.www/wp-content/plugins/twitter-tracker/twitter-tracker.php on line 88