[Plugin: Polylang] #pll_switcher not working but pll_the_languages() works fine

Hello,
I am facing problem with Polylang plugin v. 1.8.5 on WP.

When I add Language Switcher to my main menu (or custom link #pll_switcher) it generates classes, flags and stuff like that properly but language hrefs are:
– a href=”https://www.tydeninovaci2016.cz/en/front-page-en/#section-language-switcher-two”
– a href=”https://www.tydeninovaci2016.cz/en/front-page-en/#section-language-switcher-two”

Whereas when I add php function pll_the_languages($atts) into header.php it generates
– a href=”https://www.tydeninovaci2016.cz/cs/front-page/”
– a href=”https://www.tydeninovaci2016.cz/en/front-page-en/”
My website link is: https://www.tydeninovaci2016.cz/cs/front-page/ (en. https://www.tydeninovaci2016.cz/en/front-page-en/)
Do you know what might cause this problem or how to solve it?

Thank you very much!
Stepo