After failed update Plone,my site broken, please help Solved

it shows as ("'ExtensionClass.ExtensionClass' object is not iterable", <function Provides at 0x24c5938>, (<class 'Products.CMFPlone.Portal.PloneSite'>, , , , , , , , <class 'collective.upload.interfaces.IUploadBrowserLayer'>, , ))

I try to rebuild buildout.cfg, but it failed at create new client1 .. what i should do now.

then I try to upgrade to 4.3 from .4.2, it stuck at /usr/local/Plone/zeocluster/var/backups sudo -u plone

I guess this is the same problem as Bin/buildout stuck Solved ?

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it is same site, i try to recover or fix the problem, but the site show the error as top displayed.

In the above buildout.cfg you need to update the extends and the find-links, so probably:

extends =
    base.cfg
    http://dist.plone.org/release/4.3-latest/versions.cfg

# If you change your Plone version, you'll also need to update
# the repository below.
find-links +=
    http://dist.plone.org/release/4.3.12
    http://dist.quintagroup.com/products
    http://tfar:nfTrsgNMo@dist.quintagroup.com/skins/business4/

A backup will take a long time if it's a large site. You could check to see if the backup files are growing or if they're somehow stuck.

I checked, there has no new file write into /usr/local/Plone/zeocluster/var/backups

("'ExtensionClass.ExtensionClass' object is not iterable", <function Provides at 0x2c53938>, (<class 'Products.CMFPlone.Portal.PloneSite'>, <InterfaceClass Solgema.fullcalendar.interfaces.IListBaseQueryCriteria>, <InterfaceClass Solgema.fullcalendar.interfaces.ISolgemaFullcalendarEventDict>, <InterfaceClass Solgema.fullcalendar.interfaces.IListCriterias>, <InterfaceClass Solgema.fullcalendar.interfaces.ISolgemaFullcalendarView>, <InterfaceClass Solgema.fullcalendar.interfaces.ISolgemaFullcalendarMarker>, <InterfaceClass Solgema.fullcalendar.interfaces.ISolgemaFullcalendarTopicEventDict>, <InterfaceClass Solgema.fullcalendar.interfaces.ICriteriaItems>, <class 'collective.upload.interfaces.IUploadBrowserLayer'>, <InterfaceClass collective.documentviewer.interfaces.IBlobFileWrapper>, <InterfaceClass collective.flowplayer.behaviors.IFlowplayerFile>, <InterfaceClass plone.app.blob.interfaces.IFileUpload>, <InterfaceClass plone.app.blob.interfaces.IATBlobImage>, <InterfaceClass plone.app.blob.interfaces.IATBlobBlob>, <InterfaceClass plone.app.blob.interfaces.IOFSFile>, <InterfaceClass plone.app.blob.interfaces.IATBlobFile>, <InterfaceClass plone.app.blob.interfaces.IBlobWrapper>))

I'm wondering why you're even running a backup for this. Try commenting out the line that is invoking the backup maybe.

you mean from base.cfg?

Now the problem is show as
ExtensionClass.ExtensionClass' object is not iterable", <function Provides at 0x2374938>, (<class 'Products.CMFPlone.Portal.PloneSite'>, <InterfaceClass Solgema.fullcalendar.interfaces.IListBaseQueryCriteria>, <InterfaceClass Solgema.fullcalendar.interfaces.ISolgemaFullcalendarEventDict>, <InterfaceClass Solgema.fullcalendar.interfaces.IListCriterias>, <InterfaceClass Solgema.fullcalendar.interfaces.ISolgemaFullcalendarView>, <InterfaceClass Solgema.fullcalendar.interfaces.ISolgemaFullcalendarMarker>, <InterfaceClass Solgema.fullcalendar.interfaces.ISolgemaFullcalendarTopicEventDict>, <InterfaceClass Solgema.fullcalendar.interfaces.ICriteriaItems>, <class 'collective.upload.interfaces.IUploadBrowserLayer'>, <InterfaceClass plone.formwidget.contenttree.interfaces.IContentTreeWidget>, <InterfaceClass plone.formwidget.autocomplete.interfaces.IAutocompleteWidget>))
when i try to access the site

`

Maybe try a new Plone 4.3 buildout without trying to migrate so that you know for sure all the add-ons you have listed in buildout.cfg actually work with Plone 4.3.

The site is build from Plone 4.2.2 ok I will try to uninstall the add-ons

and change your password...