I just uploaded a dev version that should fix the problem. You can download it from the development versions download area and just install over your current one.
Problem was indeed linked to using Cyrillic characters: when copy/pasting them from the browser, they are URL encoded. For instance, I just copied this URL from your website in my browser:
but when I paste it here, the result is:
and so 4SEO would not recorgnize it. So now we are considering both at the same and the URL is recognized.
weeblr.com / @weeblr