Archivebox app failed to start/became corrupted. Uninstalled via CasaOS menu. App folder remained in AppData. Could not delete via CasaOS or through the terminal which prevented re-installing Archivebox. Terminal stated folder contained data even though the folder was empty. Was able to rename the folder Archivebox-old and reinstall Archivebox but the Archivebox-old folder still remains and cannot be deleted via CasaOS, or rm -r command in terminal. Terminal reports folder is not empty, CasaOS fails to delete with no reason given.