[Zope] CMF login traceback

[Stephan Goeldi]

what tells me this traceback I get on the object logged_in?

<!--
Traceback (innermost last):
  File /usr/local/zope/lib/python/ZPublisher/Publish.py, line 150, in
publish_module
  File /usr/local/zope/lib/python/ZPublisher/Publish.py, line 114, in
publish
  File /usr/local/zope/lib/python/Zope/__init__.py, line 159, in
zpublisher_exception_hook
    (Object: www)
  File /usr/local/zope/lib/python/ZPublisher/Publish.py, line 98, in publish
  File /usr/local/zope/lib/python/ZPublisher/mapply.py, line 88, in mapply
    (Object: logged_in)
  File /usr/local/zope/lib/python/ZPublisher/Publish.py, line 39, in
call_object
    (Object: logged_in)
  File /usr/local/zope/lib/python/OFS/DTMLMethod.py, line 127, in __call__
    (Object: logged_in)
  File /usr/local/zope/lib/python/DocumentTemplate/DT_String.py, line 473,
in __call__
    (Object: logged_in)
  File /usr/local/zope/lib/python/DocumentTemplate/DT_With.py, line 76, in
render
    (Object: portal_properties)
  File /usr/local/zope/lib/python/DocumentTemplate/DT_Let.py, line 76, in
render
    (Object: member=&quot;portal_membership.getAuthenticatedMember()&quot;)
  File /usr/local/zope/lib/python/DocumentTemplate/DT_Util.py, line 159, in
eval
    (Object:
portal_registration.setProperties(last_login_time=member.login_time))
    (Info: member)
  File &lt;string&gt;, line 2, in f
  File /usr/local/zope/lib/python/AccessControl/DTML.py, line 29, in
guarded_getattr
    (Object: logged_in)
  File /usr/local/zope/lib/python/AccessControl/ZopeGuards.py, line 47, in
guarded_getattr
    (Object: portal_registration)
AttributeError: (see above)

-->

TIA
Stephan