[Zope] 'string' object has no attribute 'propertysheets'

[Webmaster]

Could anyone clue me into what I'm doing wrong here. I have searched the
archives and can't find the answer.

Thanks!!

Error Type: AttributeError
Error Value: 'string' object has no attribute 'propertysheets'

<!--
Traceback (innermost last):
  File /usr/local/Zope220/lib/python/ZPublisher/Publish.py, line 222, in
publish_module
  File /usr/local/Zope220/lib/python/ZPublisher/Publish.py, line 187, in
publish
  File /usr/local/Zope220/lib/python/Zope/__init__.py, line 221, in
zpublisher_exception_hook
    (Object: ElementWithAttributes)
  File /usr/local/Zope220/lib/python/ZPublisher/Publish.py, line 171, in
publish
  File /usr/local/Zope220/lib/python/ZPublisher/mapply.py, line 160, in
mapply
    (Object: doEdit_html)
  File /usr/local/Zope220/lib/python/ZPublisher/Publish.py, line 112, in
call_object
    (Object: doEdit_html)
  File /usr/local/Zope220/lib/python/OFS/DTMLMethod.py, line 167, in
__call__
    (Object: doEdit_html)
  File /usr/local/Zope220/lib/python/DocumentTemplate/DT_String.py, line
502, in __call__
    (Object: doEdit_html)
  File /usr/local/Zope220/lib/python/DocumentTemplate/DT_Util.py, line 333,
in eval
    (Object:
_['goLiveDate'].propertysheets.eMed_information.manage_changeProperties({
   'eMed_title'           : REQUEST.form['new_eMed_title'],
   'eMed_memVerse'        : REQUEST.form['new_eMed_memVerse'],
   'eMed_summary'         : REQUEST.form['new_eMed_summary'],
   'eMed_text'            : REQUEST.form['new_eMed_text'],
   'eMed_DateMod'         : REQUEST.form['new_eMed_DateMod']
   }))
    (Info: REQUEST)
  File &lt;string&gt;, line 0, in ?
  File /usr/local/Zope220/lib/python/DocumentTemplate/DT_Util.py, line 129,
in careful_getattr
AttributeError: (see above)