Worked on the apache/paimon repository to enhance error handling for expired snapshots, focusing on improving the clarity and usefulness of error logs. The feature introduced additional context by including the earliest and latest snapshot IDs along with their timestamps, making it easier for users to diagnose and resolve issues. The approach emphasized optimizing log output to reduce unnecessary noise and accelerate root-cause analysis. Leveraging Java and unit testing, the work prioritized reliability and operability by exposing actionable information in error messages. This targeted improvement contributed to faster incident response and provided clearer guidance for users encountering snapshot expiration scenarios.