Making WP Plugin (WC External Variations) work with WPML

Hello Devs, My website ([login to view URL]) is using the mentioned plugin to specify the external link of each variation in the product itself (Every product has 16 variations which means they have 16 different URLs). In the current language (English) it is working fine. but I face a problem when I try to translate any variable product which is that the field of the external link is not showing while translating. Please notice that I need to have a different URL for each language so the external URL can't be the same for both languages. Please let me know if you need to know any further information before bidding.