Facebook like button disappear and wont display again

Question

I had facebook like button on my page http://www.puzzlekosice.sk/ and one day it disappeared.

I tried to refresh the code but no luck, I don't know what could be wrong. There is an empty area on right side.

What am I doing wrong? Thanks a lot.

Answer 1

use the lint tool to re-scrape it. Here is a great post about why: http://www.allwebmaster.com/fix-facebook-like-button-not-working/