My site show's me just "0" in html code

my webpage antonmislavsky.ru
worked well, but some days ago I found that there is nothing on the site. It just shows “0”. I thought that the problem was with a hosting and changed it, but nothing happend. It shows me just “0”. I saw maybe somebody made changes with the code of index pages, or it’s a problem with access rights, but everything ok.
Can you help me to find an answer?