2018-12-14 14:25:25,862 - Thread 139788390975232: Started on 1544793922.9; Running for 3.0 secs; Traceback:
  File "/var/www/centraalmuseum-collection/buildout-cache/eggs/Zope2-2.13.27-py2.7.egg/ZServer/PubCore/ZServerPublisher.py", line 31, in __init__
    response=b)
  File "/var/www/centraalmuseum-collection/buildout-cache/eggs/Zope2-2.13.27-py2.7.egg/ZPublisher/Publish.py", line 455, in publish_module
    environ, debug, request, response)
  File "/var/www/centraalmuseum-collection/buildout-cache/eggs/Products.LongRequestLogger-2.1.0-py2.7.egg/Products/LongRequestLogger/__init__.py", line 19, in publish_module_standard
    return publish_module_standard.original(*args, **kw)
  File "/var/www/centraalmuseum-collection/buildout-cache/eggs/Zope2-2.13.27-py2.7.egg/ZPublisher/Publish.py", line 249, in publish_module_standard
    response = publish(request, module_name, after_list, debug=debug)
  File "/var/www/centraalmuseum-collection/buildout-cache/eggs/Zope2-2.13.27-py2.7.egg/ZPublisher/Publish.py", line 143, in publish
    notify(PubBeforeCommit(request))
  File "/var/www/centraalmuseum-collection/buildout-cache/eggs/zope.event-3.5.2-py2.7.egg/zope/event/__init__.py", line 31, in notify
    subscriber(event)
  File "/var/www/centraalmuseum-collection/buildout-cache/eggs/zope.component-4.4.1-py2.7.egg/zope/component/event.py", line 27, in dispatch
    component_subscribers(event, None)
  File "/var/www/centraalmuseum-collection/buildout-cache/eggs/zope.component-4.4.1-py2.7.egg/zope/component/_api.py", line 139, in subscribers
    return sitemanager.subscribers(objects, interface)
  File "/var/www/centraalmuseum-collection/buildout-cache/eggs/zope.interface-4.4.3-py2.7-linux-x86_64.egg/zope/interface/registry.py", line 442, in subscribers
    return self.adapters.subscribers(objects, provided)
  File "/var/www/centraalmuseum-collection/buildout-cache/eggs/zope.interface-4.4.3-py2.7-linux-x86_64.egg/zope/interface/adapter.py", line 607, in subscribers
    subscription(*objects)
  File "/var/www/centraalmuseum-collection/buildout-cache/eggs/plone.transformchain-1.2.2-py2.7.egg/plone/transformchain/zpublisher.py", line 86, in applyTransformOnSuccess
    transformed = applyTransform(event.request)
  File "/var/www/centraalmuseum-collection/buildout-cache/eggs/plone.transformchain-1.2.2-py2.7.egg/plone/transformchain/zpublisher.py", line 75, in applyTransform
    transformed = transformer(request, result, encoding)
  File "/var/www/centraalmuseum-collection/buildout-cache/eggs/plone.transformchain-1.2.2-py2.7.egg/plone/transformchain/transformer.py", line 50, in __call__
    newResult = handler.transformIterable(result, encoding)
  File "/var/www/centraalmuseum-collection/buildout-cache/eggs/plone.app.theming-2.0.3-py2.7.egg/plone/app/theming/transform.py", line 169, in transformIterable
    transformed = transform(result.tree, **params)

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