the cart in the secondary language (english) does not add the total correcly

plugins: WPML, woocommerce and pinpoint booking system want to buy more than one service, in the second language (english) the price is not calculated correctly . it does not sum up multiple hours.
It works fine in the first language (italian).
we do have user and password to enter the site at this moment
user:
giovanna
password:
vincent

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