During July 2025, Hmchanar focused on backend development and error handling for the kaiachain/kaia repository, addressing a critical issue in the staking module. He delivered a targeted bug fix that improved the reliability of the klay_getRewards RPC by refining error wrapping and resolving upstream redirection problems. Working in Go, Hmchanar enhanced the consistency of error handling for RPC calls, which reduced diagnostic time and minimized the risk of future failures. This work contributed to more accurate state fetching and increased the robustness of rewards processing, ultimately supporting a more stable and trustworthy staking workflow within the project’s backend infrastructure.