Allow translation of default language make the homepage invisible

How can we have the comment translated into several languages?
Here in this website page https://www.mondosol.com/travel/listing/nuovo-albergo-italia/ you can see how the plugin is not translating the comments in the page that have been written in Italian.

It only translates them in other languages than the original English.
I have tried what Ofer said by allowing translation of default language but it makes the homepage invisible.

I don’t know what to do and how to put the language translation also in the homepage of the theme we are using. Many thanks for your great plugin that we love and your help.

https://www.ads-software.com/plugins/transposh-translation-filter-for-wordpress/