Fatal error: Uncaught Error: Call to undefined function SimpleShareButtonsAdder\create_function() in /customers/9/3/c/lavaletto.se/httpd.www/fjk/wp-content/plugins/simple-share-buttons-adder/php/class-widget.php:30
Stack trace:
#0 /customers/9/3/c/lavaletto.se/httpd.www/fjk/wp-content/plugins/simple-share-buttons-adder/php/class-plugin.php(40): SimpleShareButtonsAdder\Widget->__construct()
#1 /customers/9/3/c/lavaletto.se/httpd.www/fjk/wp-content/plugins/simple-share-buttons-adder/instance.php(19): SimpleShareButtonsAdder\Plugin->__construct()
#2 /customers/9/3/c/lavaletto.se/httpd.www/fjk/wp-content/plugins/simple-share-buttons-adder/simple-share-buttons-adder.php(26): require_once('/customers/9/3/...')
#3 /customers/9/3/c/lavaletto.se/httpd.www/fjk/wp-settings.php(305): include_once('/customers/9/3/...')
#4 /customers/9/3/c/lavaletto.se/httpd.www/fjk/wp-config.php(80): require_once('/customers/9/3/...')
#5 /customers/9/3/c/lavaletto.se/httpd.www/fjk/wp-load.php(37): require_once('/customers/9/3/...')
#6 /customers/9/3/c/lavaletto.se/httpd.www/fjk/wp-blog-header.php(13): require_once('/customers/9/3/...')
#7 /customers/9/3/c/lavaletto.se/httpd.www/fjk/index.php(17): require('/customers/9/3/...')
#8 {main}
  thrown in /customers/9/3/c/lavaletto.se/httpd.www/fjk/wp-content/plugins/simple-share-buttons-adder/php/class-widget.php on line 30