wrong link with custom post type

Dear Polylang support and users, I activated the second language on Backpacktraveler theme of Qodeintractive and it seems working fine except for one thing.

The issue is about the link that shows all articles of a certain destination. The first language (Italian) works fine, whereas the English version does see the number or articles, but when clicked it shows no articles at all.

Details:
https://triportrek.it/destination-item/austria/
shows Austria in Italian and on the sidebar I see 1 correlated article, hence I click there: https://triportrek.it/articoli/?destination-id=11053 and this ID brings me to all articles of Austria in Italian. Good. The same does not happen in English version.

https://triportrek.it/en/destination-item/austria-en/
this is the english version of Austria, on the sidebar I see there is 1 article correlated (I’ve already created an English version of the Austria article), but when I click on that page to see all the articles: https://triportrek.it/articoli/?destination-id=11447 it brings me to another ID (which is correct) but shows nothing because it is still the Italian link structure. It should show all the articles of Austria in English.
In fact, the issue is that the theme (or polylang) assigns an Italian link instead of an English one, like this: https://triportrek.it/en/articles/?destination-id=11447 this is the correct link which works and which shows the Austria article in English.

How can I make that the theme (or polylang) assigns to the sidebar button this link https://triportrek.it/en/articles/?destination-id=11447 instead of https://triportrek.it/articoli/?destination-id=11447 ? (Of course not only with this ID)

Thank you

The page I need help with: [log in to see the link]