[Zope] LoginManager broken

[K. Praveen Kumar]

Dear List,
     I have been getting problem with the Login Manager. On Saturday it
was worked fine. Today I started the system it was not working. The
below is Traceback of the Login Manager.

Traceback (most recent call last):
  File
"/usr/src/redhat/BUILD/Zope-2.6.1b1-src/lib/python/OFS/Application.py",
line 541, in import_product
  File "/var/zope/Products/LoginManager/__init__.py", line 1, in ?
    import LoginManager, LoginMethods, UserSources
  File "/var/zope/Products/LoginManager/LoginManager.py", line 8, in ?
    from Products.ZPatterns.Specialists import Specialist
  File "/var/zope/Products/ZPatterns/__init__.py", line 1, in ?
    import Rack, Specialists, Customizers, AttributeProviders,
SheetProviders
  File "/var/zope/Products/ZPatterns/Rack.py", line 1, in ?
    from DataManagers import DataManager
  File "/var/zope/Products/ZPatterns/DataManagers.py", line 6, in ?
    from AttributeProviders import AttributeProvider
  File "/var/zope/Products/ZPatterns/AttributeProviders.py", line 7, in
?
    from Expressions import *
  File "/var/zope/Products/ZPatterns/Expressions.py", line 38, in ?
    from DocumentTemplate.DT_Util import Eval, expr_globals,
TemplateDict, \
ImportError: cannot import name expr_globals


-- 
Thanks & Regards
Praveen Kumar
SoftPro Systems Ltd