[Forminator Pro] Forminator Pro Translation

I have Formintor Pro plugin installed on NON English web site.
Therefore I have to translate some words and sentences outputed by Forminator to local language.
I installed Loco Translate for this job and have translated most of the required phrases.
But there are some I cannot find with Loco Translate:
And where can I find Mo Tu We Th Fr Sa Su and month names for Date flled in Forminator Pro?
If I use Date picker on http://nov.tik.si/iscem-zaposlitev/ in field Datum rojstva Month and year are not visible. Why?
Thank you.