Language Translation

Hi,
I have installed Thank you Page customizer on my website https://fastcorpusa.us.
My website is using two languages (It’s multilingual website).

I’m using WPML for the tranlsation process. I’m unable to edit the Order Confirmation Page text in different language.

Currently, I have added text in English, I want to tranlsate it second language.. So that, If a user checkout (Place an order) from second language, he should see the relevant text on confirmation page.

Hope so, my question is clear.
Can you please help me out?

You can place a test order on my website (Order using both languages).

Looking forward to your response.
Thanks