[Closed] I'm using wcml_custom_prices_fields hook for add custom field and try to store data.

Background of the issue:
I'm using the wcml_custom_prices_fields hook to create a custom field and try to store data. The field appears in the product, but after saving, the data is not storing. Documentation link: https://wpml.org/wcml-hook/wcml_custom_prices_fields. My code: hidden link. Backend Screenshot: hidden link.

Symptoms:
The custom field data is not storing after saving.

Questions:
Why is the custom field data not storing after saving?
Is there a new update required for the plugin to fix this issue?