load_pdf_file()
#6 /var/www/clients/client852/web2734/web/pixelspolo.hu/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#7 /var/www/clients/client852/web2734/web/pixelspolo.hu/wp-includes/plugin.php(517): WP_Hook->do_action()
#8 /var/www/clients/client852/web2734/web/pixelspolo.hu/wp-admin/admin.php(176): do_action()
#9 /var/www/clients/client852/web2734/web/pixelspolo.hu/wp-admin/index.php(10): require_once(‘…’)
#10 {main}
thrown