I am having IndexError in some of my folders when i tried to view the content of Zcatalog created in these folders, but to my surprise this is not happening in other folders with similar Zcatalog. I am also not experiencing the same problem with objects of the old Zcatalog that I have catalog before this error. In an attempt to correct this error, i had duplicated the old Zcatalog and renamed it. But once i catalog the objects and try to view it, it will show the IndexError again.

Module ZPublisher.Publish, line 119, in publish
Module ZPublisher.mapply, line 88, in mapply
Module ZPublisher.Publish, line 42, in call_object
Module OFS.DTMLMethod, line 143, in __call__
<DTMLMethod at /news/politics/test>
URL: http://www.news-online.com/politics/test/manage_main
Physical Path:/news/politics/test
Module DocumentTemplate.DT_String, line 476, in __call__
Module DocumentTemplate.DT_In, line 676, in renderwob
Module AccessControl.ImplPython, line 191, in guarded_getitem
Module AccessControl.ZopeGuards, line 67, in guarded_getitem
Module Products.ZCatalog.Lazy, line 162, in __getitem__

IndexError: 1