Worked on the Qbox-project/qbx_core repository to enhance the stability of vehicle persistence workflows by addressing a critical bug in callback error handling. Focused on backend development using Lua and FiveM scripting, the solution introduced existence checks for callbacks and implemented guarded error handling to prevent crashes when callbacks were missing. This approach ensured that vehicle-related events were processed correctly and reduced the risk of cascading failures in production environments. The work was directly linked to a tracked issue for traceability, supporting quality assurance and audit processes while improving runtime reliability for vehicle persistence within the project’s core backend systems.