multilingual Joomla site problem

Hi Piotr / Ceść Piotr

TO set up multilanguage site you have to do many adjustments
Its not only adding language and language switcher
You have to "translate " all content and assign them language atribute
Good explanation step by step is here
https://www.joomshaper.com/documentation/helix-framework/helix3/how-to-create-a-multilingual-site

I used it for my site and its works perfect

Yes I know, I tried to go through the process, but the problem appears in the first step and I cannot help it.

I have polish installed:
https://prnt.sc/26ull7f

but then it doesn't appear here:
https://prnt.sc/26ullu7

https://prnt.sc/26ulmhg

I'm out of ideas what is happening

Piotr

For you its needed only Site languages (Języki treści)
Other ones are for backend
When you will finish all steps from link which I sent yo, new language will appear on site

On your first screen you have Joomla languages - its not your site languages
On second scree you have site languages but polish is not visible bacause you did not finish all required steps
You hace to cerate manus in PL, copy o template for PL aticles aith lanyage atribute PL and so on
Nezt you have to assign language codes to menu items by choosing PL copy of template and so on

You have everythink in link which I sent you
Do it and PL will appear

First install language packs for Joomla - this is what you lack and block you in next steps

You can find it here
https://downloads.joomla.org/pl/language-packs

Zgadza się ;)
True ;)