The language of the mini cart modal window changes to the main language when adding a product

[elna_service]

Hello,

Our website is elna-service.pl.
It uses Shopify Translate & Adapt for multilingual site.
English is a main language.
When I'm on Polish version of website and when I click "Add to cart" button - the language of the mini cart modal window changes to the main language (English) when adding a product to the cart. Although it should have remained in Polish. If I refresh the page, the mini cart modal window becomes in Polish, as it should be. How to solve this problem?