[Đã đóng] Custom Button: Fluent Form Button not in String Translation

Hello, I’m using Fluent Forms and have already registered the fluent form strings in WPML for translation. However, the submit button in one of our forms, which currently displays “Widerruf bestätigen,” does not appear in the WPML String Translation search. I would like to know how to make this button text fully translatable. So far, I looked in Admin Texts, including Translations. I scanned the Theme and Plugins.

<button class="ff-btn ff-btn-submit ff-btn-md ff_btn_style wpf_has_custom_css" type="submit" name="custom_submit_button-2_1" data-name="custom_submit_button-2_1" aria-label="Widerruf bestätigen">
Widerruf bestätigen
</button>