[Cerrado] Sites using Prepaid Credits' is showing an Inactive status

Background of the issue:
I am trying to understand why the option 'Sites using Prepaid Credits' is showing an Inactive status for enlace oculto, even though the WPML plugin is active in the WordPress dashboard of the same site. Link to a page where the issue can be seen: enlace oculto

Symptoms:
The 'Sites using Prepaid Credits' option is showing an Inactive status for enlace oculto.

Questions:
Why is the 'Sites using Prepaid Credits' status showing as inactive?
What is the recommended solution to correct this?
What preventive steps can we take to avoid similar issues in the future?