Ktat focused on backend development for the gofiber/fiber repository, addressing a critical issue in the logging subsystem. During the month, Ktat identified and resolved a bug where log messages did not consistently use the intended format string, which could lead to unreliable diagnostics across deployments. By updating the logging path to use the format string directly rather than passing argument arrays, Ktat improved the clarity and consistency of log outputs. This work, implemented in Go, involved validating logging behavior across different environments to ensure robust diagnostics. The contribution reflects a targeted, in-depth approach to maintaining reliability in production backend systems.