CF 6 Multilanguage on Wordpress site

hi, I have this problem on wordpress 5.3 with the WPML plugin for language management; The site is under construction.
I configured two languages (it_IT and en_GB) with Italian as the main language.
In Chronoform v6 (last update) I configured the "Locales" tab with the relative translations.
The code I used in the form is {l: LABEL_NAME} and the translation in Locales is LABEL_NAME = Somethings, and I put each code in a separate line.
Unfortunately on the frontend whatever language I select I always see the form without the relative replacement of the text, in practice I see LABEL_NAME, or the content of the {}. I don't know where to look for the solution anymore ...
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please add a PHP action and use this code:

echo get_bloginfo('language');

what do you get ?
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Also please use the shortcode {language:}, what do you get ?