beorn
Prince
I see no random.py although a search finds random.pyc in assets/python folder.That is what a map crash looks like. Check in your PublicMaps folder for a map script file called random.py. This name conflicts with the random.py that is part of the Python system, so it needs to be renamed. Rename the file, then let me know if that works or not.
This issue comes up from time to time on my maps.
Edit: 'Rocky' is not actually an option for the map script
Not sure what you mean that rocky isn't an option -- it appears on the list: