Root Cause
The issue arose because the subscription plan records in production were missing a crucial field, leading to a failure in the system. This caused the interfaces to become inaccessible as they couldn't retrieve the necessary information.
Resolution
The solution involved reverting the changes that introduced the bug in the production environment, thereby restoring the system's functionality.
Action Plan
To prevent future occurrences, improvements were made to the error handling screen, a deployment was executed to enhance query resilience, and additional validation was implemented in testing to ensure subscription functionality.