Translating some custom filds

Hi. My website is http://myremont.pro/

I’m tring to make translation oj call to action and home page slider.
Both of them are configurable on Theme options page.

I can not find any information about how to do it,

Could you help me, or at least offer some useful links?

Sorry for my bad English. I am Ukrainian.

https://wordpress.org/plugins/polylang/