You can find layout for archives in theme options - general. You can also find and study information about page builder and custom homepages in our documentation. As you don't have active support, we can't provide you any setup or customization help

How do I change this page to 5 columns for post view

https://ukladodpornosciowy.pl/

i don't know how you made this page. it doesn't use any of theme layouts and it's using custom third party plugins for grid. Please, write to author of your plugin which you used to made this grid as it's not theme related question

the columns option for the store is set to 5 columns, but there is a separate setting for posts and products and where is it?

ADDITIONAL INFO

Link on page with issue: polskieimprezy.pl

Hi. Our support is on English only. Please, write on English

opcja kolumn dla sklepu jest ustawiona na 5 kolumn, ale dla postów i produktów jest osobne ustawienie i gdzie się znajduje?