GEKKO is in its early stages and still under active development. If you identify a bug in the package, please submit an issue on GitHub.
If you would like to contribute to GEKKO development, please make pull requests on the GitHub repo.
Further clarification regarding the APMonitor functionality on the back end of GEKKO, please join the APMonitor User Group.
The files read/written by GEKKO and APMonitor are in the folder indicated in m.path. Information on debugging these files is available on APMonitor.