Fatal error: Uncaught Error: Call to a member function insertBefore() on null in /var/www/clients/client1/web2/web/modules/change_description_of_category_and_manufacture/hooks/display.php:60
Stack trace:
#0 /var/www/clients/client1/web2/web/class/class.Event.php(279): Core::{closure}(NULL)
#1 /var/www/clients/client1/web2/web/class/class.Core.php(306): Event::run('system.display', '<!DOCTYPE html>...')
#2 /var/www/clients/client1/web2/web/index.php(631): Core::reader('<!DOCTYPE html>...')
#3 {main}
thrown in /var/www/clients/client1/web2/web/modules/change_description_of_category_and_manufacture/hooks/display.php on line 60