[Zope] Can't Add a Z Search Interface!

[Ben Ocean]

Hi;
For some reason every time I try to enter a Z Search Interface I get either 
an HTTP 500 error or this error:

 >>>
No searchable objects

Traceback (innermost last):
   File /apache/Zope-2.2.4-linux2-x86/lib/python/ZPublisher/Publish.py, 
line 222, in publish_module
   File /apache/Zope-2.2.4-linux2-x86/lib/python/ZPublisher/Publish.py, 
line 187, in publish
   File /apache/Zope-2.2.4-linux2-x86/lib/python/Zope/__init__.py, line 
221, in zpublisher_exception_hook
   File /apache/Zope-2.2.4-linux2-x86/lib/python/ZPublisher/Publish.py, 
line 171, in publish
   File /apache/Zope-2.2.4-linux2-x86/lib/python/ZPublisher/mapply.py, line 
160, in mapply
     (Object: manage_addZSearch)
   File /apache/Zope-2.2.4-linux2-x86/lib/python/ZPublisher/Publish.py, 
line 112, in call_object
     (Object: manage_addZSearch)
   File /apache/Zope-2.2.4-linux2-x86/lib/python/Shared/DC/ZRDB/Search.py, 
line 100, in manage_addZSearch
ValueError: (see above)
<<<
Wazzup?
TIA,
BenO