Cannot Delete Alerts and Statistics don't work

Hi,
I'm using Fedora 14 and I've installed Prelude with Snort, auditd and
prelude-lml.
I've tried Prewikka 1.0.0.0 and RC3 but I still get the same problem when I
select an alert and press delete my http address is
http://localhost/prewikka? and get :
Forbidden

You don't have permission to access /prewikka on this server.
------------------------------

I'm not sure what's going on...



Additionally the whole Statistics Section doesn't work as well:

Prewikka internal error

*[Errno 2] No such file or directory:
'/usr/share/prewikka/htdocs/generated_images/YW5kcmVhcw==/VGltZWxpbmU=_8NpQZp.png'
*
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/prewikka/Core.py", line 335, in
process
    getattr(view_object, view["handler"])()
  File "/usr/lib/python2.7/site-packages/prewikka/views/stats.py", line 798,
in render
    self._renderTimelineChart(criteria)
  File "/usr/lib/python2.7/site-packages/prewikka/views/stats.py", line 779,
in _renderTimelineChart
    "alert.assessment.impact.severity", criteria,
names_and_colors=_severity_maps)
  File "/usr/lib/python2.7/site-packages/prewikka/views/stats.py", line 447,
in _addTimelineChart
    timeline.render(title)
  File "/usr/lib/python2.7/site-packages/prewikka/Chart.py", line 296, in
render
    fname = self._getFilename(name, expire, uid, gid);
  File "/usr/lib/python2.7/site-packages/prewikka/Chart.py", line 161, in
_getFilename
    fd, self._filename = tempfile.mkstemp(prefix = basename + "_", suffix =
suffix, dir = pathname)
  File "/usr/lib/python2.7/tempfile.py", line 293, in mkstemp
    return _mkstemp_inner(dir, prefix, suffix, flags)
  File "/usr/lib/python2.7/tempfile.py", line 228, in _mkstemp_inner
    fd = _os.open(file, flags, 0600)
OSError: [Errno 2] No such file or directory:
'/usr/share/prewikka/htdocs/generated_images/YW5kcmVhcw==/VGltZWxpbmU=_8NpQZp.png'

Thank you for your time
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