I am not able to access the contents page

I am not able to access the content page it is showing me following error. I had just visited the portal_view_customizations page and had not edited any content, since then I am facing this issue.

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 five.customerize.zpt, line 83, in call
Module Products.PageTemplates.ZopePageTemplate, line 338, in _exec
Module Products.PageTemplates.ZopePageTemplate, line 435, in pt_render
Module Products.PageTemplates.PageTemplate, line 87, in pt_render
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 261, in render
Module chameleon.template, line 191, in render
Module chameleon.template, line 171, in render
Module 37587f149b58fd39dd5ab739c3b03457.py, line 294, in render
Module 6f786ca8c1beec847a83f5acc5e508e3.py, line 1223, in render_master
Module 6f786ca8c1beec847a83f5acc5e508e3.py, line 420, in render_content
Module 37587f149b58fd39dd5ab739c3b03457.py, line 282, in __fill_content_core
Module 37587f149b58fd39dd5ab739c3b03457.py, line 128, in render_content_core
Module five.pt.expressions, line 135, in call
Module five.pt.expressions, line 126, in traverse
Module zope.traversing.adapters, line 136, in traversePathElement

  • traceback_info: (<five.customerize.zpt.TTWView object at 0x7f6d3a1c00d0>, 'options')
    Module zope.traversing.adapters, line 50, in traverse

  • traceback_info: (<five.customerize.zpt.TTWView object at 0x7f6d3a1c00d0>, 'options', ())
    LocationError: (<five.customerize.zpt.TTWView object at 0x7f6d3a1c00d0>, 'options')

  • Expression: "view/options"

  • Filename: ... s.cmfcore.interfaces._content.ifolderish-folder_contents

  • Location: (line 22: col 45)

  • Arguments: repeat: {...} (0)
    template: <ImplicitAcquisitionWrapper products.cmfcore.interfaces._content.ifolderish-folder_contents at 0x7f6d476945f0>
    modules: <instance - at 0xd825f0>
    here: <ImplicitAcquisitionWrapper KC at 0x7f6d44bb91e0>
    user: <ImplicitAcquisitionWrapper - at 0x7f6d47e7c690>
    nothing: <NoneType - at 0x7f6d5efc1f20>
    target_language: <NoneType - at 0x7f6d5efc1f20>
    container: <ImplicitAcquisitionWrapper portal_view_customizations at 0x7f6d46ce2550>
    default: <object - at 0x7f6d5f18d540>
    request: <instance - at 0x7f6d3a45b4d0>
    wrapped_repeat: <SafeMapping - at 0x7f6d49f7c158>
    loop: {...} (0)
    context: <ImplicitAcquisitionWrapper KC at 0x7f6d44bb91e0>
    translate: <function translate at 0x7f6d3a1a5410>
    root: <Application Zope at 0x7642a28>
    options: {...} (1)
    view: <TTWView None at 0x7f6d3a1c00d0>

Ahem, are you really sure you did not click on any button labeled 'customize' and 'save changes' ?
In this screen there is a 'ATTENTION: beware using this tool' mention...
So go to customizations page again, click on content tabs and delete everything here, especially products.cmfcore.interfaces._content.ifolderish-folder_contents
Then try again.

Resolved it. I again went to the portal_view_cuatomization page clicked Save changes without making any changes and then went on to undo the changes. This worked, but its really strange.
@gp54321 Thanks for the support