Error replacing documentation with PyPi

I have a PyPi project and I am trying to reload documentation on pythonhosted using a zipfile. I am trying to accomplish this through my project's PyPi web interface ( https://pypi.python.org/pypi?name=rabacus&version=0.9.0&:action=display ). When I try to upload a file, I get the following error:

Error handling form

Error unpacking zipfile: unable to create directory, there is already a file with this name: rabacus / _images

Any ideas on how I can clean up the old documentation or change my zip of html files so that PyPi will accept it?

edit: I deleted the project completely to see if I can just build it from scratch ... see comment below.

edit: Doesn't work with a 20 minute wait after deleting a project and reloading both the project and the documents.