Theming control panel crash in 5.0a2

Hello,

The Theming Control Panel fails to load with the following error in Plone 5.0a2 on Centos 6.5. I uninstalled and reinstalled the Diazo product using quickinstaller. That corrected one styling problem where the main content slid under the left hand navigation bar. But the Theming Control Panel still returned this error. Any pointers would be appreciated.

Thank you,

Norman

Traceback (innermost last):
  Module ZPublisher.Publish, line 138, in publish
  Module ZPublisher.mapply, line 77, in mapply
  Module ZPublisher.Publish, line 48, in call_object
  Module plone.app.theming.browser.controlpanel, line 51, in __call__
  Module Products.Five.browser.pagetemplatefile, line 125, in __call__
  Module Products.Five.browser.pagetemplatefile, line 59, in __call__
  Module zope.pagetemplate.pagetemplate, line 132, in pt_render
  Module five.pt.engine, line 93, in __call__
  Module z3c.pt.pagetemplate, line 163, in render
  Module chameleon.zpt.template, line 257, in render
  Module chameleon.template, line 190, in render
  Module chameleon.template, line 172, in render
  Module a8416b682498838c0c35f59c9472d4e283b9d4a1.py, line 4833, in render
  Module 180b2e639fa8d8ce93e2b6f3f3050bb41e988dd5.py, line 1202, in render_master
  Module 180b2e639fa8d8ce93e2b6f3f3050bb41e988dd5.py, line 460, in render_content
  Module a8416b682498838c0c35f59c9472d4e283b9d4a1.py, line 2996, in __fill_main
  Module plone.app.controlpanel.skins, line 141, in get_use_popups
AttributeError: 'NoneType' object has no attribute 'getEnabled'

 - Expression: "python:request.get('usePopups', view.skinsSettings.use_popups)"
 - Filename:   ... .2.0-py2.7.egg/plone/app/theming/browser/controlpanel.pt
 - Location:   (529:45)
 - Source:     ... python:request.get('usePopups', view.skinsSettings.use_popups) ...
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 - Arguments:  repeat: {...} (0)
               template: <ViewPageTemplateFile - at 0x6ea4710>
               views: <ViewMapper - at 0x7d1e0d0>
               modules: <instance - at 0x1530710>
               args: <tuple - at 0x7fc74801b050>
               here: <ImplicitAcquisitionWrapper broccolibrand at 0x52ca3c0>
               user: <ImplicitAcquisitionWrapper - at 0x7322820>
               nothing: <NoneType - at 0x7730f0>
               container: <ImplicitAcquisitionWrapper broccolibrand at 0x52ca3c0>
               request: <instance - at 0x7a8acb0>
               wrapped_repeat: <SafeMapping - at 0x7fc72825e368>
               traverse_subpath: <list - at 0x64e6f38>
               default: <object - at 0x7fc747fdeb60>
               loop: {...} (2)
               context: <ImplicitAcquisitionWrapper broccolibrand at 0x52ca3c0>
               view: <SimpleViewClass from /buildout-cache/eggs/plone.app.theming-1.2.0-py2.7.egg/plone/app/theming/browser/controlpanel.pt theming-controlpanel at 0x7cf6850>
               translate: <function translate at 0x7e24398>
               root: <ImplicitAcquisitionWrapper Zope at 0x74b3d70>
               options: {...} (0)
               target_language: <NoneType - at 0x7730f0>


---
http://www.normanfournier.com

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