Fatal error: Uncaught Error: Class "WP_Widget_Factory" not found in /customers/e/2/1/amiva.se/httpd.www/wp-settings.php:540
Stack trace:
#0 /customers/e/2/1/amiva.se/httpd.www/wp-config.php(86): require_once()
#1 /customers/e/2/1/amiva.se/httpd.www/wp-load.php(50): require_once('/customers/e/2/...')
#2 /customers/e/2/1/amiva.se/httpd.www/wp-blog-header.php(13): require_once('/customers/e/2/...')
#3 /customers/e/2/1/amiva.se/httpd.www/index.php(17): require('/customers/e/2/...')
#4 {main}
  thrown in /customers/e/2/1/amiva.se/httpd.www/wp-settings.php on line 540