Hi,
after installing the single xyz application and creating membersmhip programs, the application forced me to add its buy and Add to cart buttons. Unfortunately, after adding one of the buttons is not translated despite the fact that there is a Polish translation for it.
In addition, if the user is not logged in and cannot purchase a subscription then the “Sign in” button is displayed, which also has a Polish translation. Changes to these values in the code (single-add-to-cart.liquid) also do nothing.