Thanks Peter,
Perhaps you could suggest what settings I might need to make to run this plugin successfully?
I agree with this, a list of pre-requisites for the plugin to run successfully, it would help, as well as some plain reading error reporting (via exit codes on initiated actions maybe) to offer clues as to what might have gone wrong when things do go pear-shaped.
Who knows? It may even help narrow some issues down quicker at the same time.