That's not really the issue.
The issue is that the client blocks all read/write access to any directory outside of the OSBot data folder. The problem here is that the script assumes an osbot install directory located under the system property "user.home", which technically should be correct. But that seems not to be the case here.
I asked a dev, but they were unable to reproduce the problem by running the script on ubuntu 14.04, as their install directory was actually located under /root/OSBot/.
I guess you could try moving the install folder to /root/, but if that doesn't cut it, then I really don't know :|