My Site Has Disappeared

Hello

As instructed in this topic: Stop Pages Showing up Site Map

I pasted the code below to exclude certain pages from my site map.
p$age_list = wp_list_pages("title_li=&depth=$depth&sort_column=menu_order&echo=0&exclude=3837,3946,4700,4421");

After doing so, my whole site has disappeared: locallinko.com.

Can you please tell me what I can do to get my site back.

Kind regards
Oretta