django style interface creating 500 server error

After clicking on "switch to django style interface" in the administration panel, I cannot access the administration panel anymore. It just gives a 500 server error. How do I get back to the OSQA style interface?

        EXCEPTION INFO:
            Traceback (most recent call last):
      File "C:\\Python27\\lib\\site-packages\\django-1.3-py2.7.egg\\django\\core\\handlers\\base.py", line 111, in get_response
        response = callback(request, *callback_args, **callback_kwargs)
      File "c:/www/osqa\\forum\\views\\admin.py", line 28, in wrapper
        return fn(request, *args, **kwargs)
      File "c:/www/osqa\\forum\\views\\admin.py", line 55, in wrapper
        return render_to_response(template, context, context_instance=RequestContext(request))
      File "C:\\Python27\\lib\\site-packages\\django-1.3-py2.7.egg\\django\\shortcuts\\__init__.py", line 20, in render_to_response
        return HttpResponse(loader.render_to_string(*args, **kwargs), **httpresponse_kwargs)
      File "C:\\Python27\\lib\\site-packages\\django-1.3-py2.7.egg\\django\\template\\loader.py", line 188, in render_to_string
        return t.render(context_instance)
      File "C:\\Python27\\lib\\site-packages\\django-1.3-py2.7.egg\\django\\template\\base.py", line 123, in render
        return self._render(context)
      File "C:\\Python27\\lib\\site-packages\\django-1.3-py2.7.egg\\django\\template\\base.py", line 117, in _render
        return self.nodelist.render(context)
      File "C:\\Python27\\lib\\site-packages\\django-1.3-py2.7.egg\\django\\template\\base.py", line 744, in render
        bits.append(self.render_node(node, context))
      File "C:\\Python27\\lib\\site-packages\\django-1.3-py2.7.egg\\django\\template\\base.py", line 757, in render_node
        return node.render(context)
      File "C:\\Python27\\lib\\site-packages\\django-1.3-py2.7.egg\\django\\template\\loader_tags.py", line 127, in render
        return compiled_parent._render(context)
      File "C:\\Python27\\lib\\site-packages\\django-1.3-py2.7.egg\\django\\template\\base.py", line 117, in _render
        return self.nodelist.render(context)
      File "C:\\Python27\\lib\\site-packages\\django-1.3-py2.7.egg\\django\\template\\base.py", line 744, in render
        bits.append(self.render_node(node, context))
      File "C:\\Python27\\lib\\site-packages\\django-1.3-py2.7.egg\\django\\template\\base.py", line 757, in render_node
        return node.render(context)
      File "C:\\Python27\\lib\\site-packages\\django-1.3-py2.7.egg\\django\\template\\defaulttags.py", line 311, in render
        return self.nodelist_true.render(context)
      File "C:\\Python27\\lib\\site-packages\\django-1.3-py2.7.egg\\django\\template\\base.py", line 744, in render
        bits.append(self.render_node(node, context))
      File "C:\\Python27\\lib\\site-packages\\django-1.3-py2.7.egg\\django\\template\\base.py", line 757, in render_node
        return node.render(context)
      File "C:\\Python27\\lib\\site-packages\\django-1.3-py2.7.egg\\django\\template\\defaulttags.py", line 450, in render
        raise e
    NoReverseMatch: Reverse for 'admin_set' with arguments '('',)' and keyword arguments '{}' not found.