Doesnt work with 4.0.1

Have you updated to the latest version and do you have a footer that is using wp_footer. That is now where the CSS lies for the buttons as it is more valid markup.

Looks like you have a PHP error somewhere which is not letting the footer wrap itself up. If you view source you’ll see there’s no closing body or html tag.

John, thank you for such a fast answer.
Hovever, I must ask you for a little more help ??

Thing is, I’m a quite amateur with HTML, so, could you tell where exactly should I look for PHP error?

Is it on footer.php template?

Thank you very much once again

It will most likely be in the footer.php file.

It ends after this block:

<p id="copyright">sva prava zadr?ana PROREK d.o.o.</p>
            <p id="credit"><a href="https://www.nimbusthemes.com/">Opulus Theme</a> | Powered by <a href="https://www.ads-software.com">WordPress</a></p>
        </div>
    </div>
</div>

That’s the end of your file. There should be scripts, and at the very least a closing body and html tag.

I’ve just reinstalled theme (WP Opulus) and everything is back normal ! ??

John, once again, thanks for all help, I really apriciate it

P.S. Maybe my English is not so good, btw, so sorry about that.

Anyway, problem solved ??

Awesome, glad to hear it.