Footer link

Hi, I added two links in the footer, like this: <div class="copyright">Copyright © 2016 <span>www.tristiri.cz</span> Veškerá práva vyhrazena.</div><div class="powered">Soukromí</div> First link works. Second does not. When clicked - the following text is added to the link "http://www.tristiri.cz/wordpress/soukromi/%20%E2%80%8E%E2%80%8E" and hence "page doesn't exist" is returned by the browser. How to prevent such event, please? Thanks, Dan