[Zope] POSKeyError 000000000001efcd

[BZ]

I took a look through the mailing list and there is a lot of talk of 
POSKeyError but I have not found one solution.

Anyone have something to go on? A fix? A place to start?

BZ

Mine:
Error Type: POSKeyError
Error Value: 000000000001efcd

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: Members)
   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: index_html)
   File /usr/local/zope/lib/python/ZPublisher/Publish.py, line 39, in 
call_object
     (Object: index_html)
   File /usr/local/zope/lib/python/OFS/DTMLMethod.py, line 127, in 
__call__
     (Object: index_html)
   File /usr/local/zope/lib/python/DocumentTemplate/DT_String.py, line 
473, in __call__
     (Object: index_html)
   File /usr/local/zope/lib/python/DocumentTemplate/DT_Return.py, line 
31, in render
     (Object: roster)
   File /usr/local/zope/lib/python/OFS/DTMLMethod.py, line 120, in 
__call__
     (Object: roster)
   File /usr/local/zope/lib/python/DocumentTemplate/DT_String.py, line 
473, in __call__
     (Object: roster)
   File /usr/local/zope/lib/python/DocumentTemplate/DT_Let.py, line 75, 
in render
     (Object: roster="portal_membership.getRoster()" 
userMgr="portal_membership.checkPermission( 'View', Members 
)")
   File /usr/local/zope/lib/python/DocumentTemplate/DT_Util.py, line 
159, in eval
     (Object: portal_membership.getRoster())
     (Info: portal_membership)
   File <string>, line 2, in f
   File 
/usr/local/zope/lib/python/Products/CMFDefault/MembershipTool.py, line 
141, in getRoster
     (Object: portal_membership)
   File /usr/local/zope/lib/python/ZODB/Connection.py, line 447, in 
setstate
   File /usr/local/zope/lib/python/ZODB/FileStorage.py, line 582, in load
     (Object: /usr/local/zope/var/Data.fs)
   File /usr/local/zope/lib/python/ZODB/FileStorage.py, line 577, in 
_load
     (Object: /usr/local/zope/var/Data.fs)
   File /usr/local/zope/lib/python/ZODB/FileStorage.py, line 2134, in 
_loadBack
POSKeyError: (see above)