Issue with ptop_fast_reindex_fluff command

Hi All,

I want to run a ptop_fast_reindex_fluff command, but I got a some error.
Do you have any ideas what could be cause of this problem?

Traceback (most recent call last):
File "./manage.py", line 52, in
execute_from_command_line(sys.argv)
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/core/management/init.py",
line 453, in execute_from_command_line
utility.execute()
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/core/management/init.py",
line 392, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/core/management/init.py",
line 272, in fetch_command
klass = load_command_class(app_name, subcommand)
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/core/management/init.py",
line 77, in load_command_class
module = import_module('%s.management.commands.%s' % (app_name, name))
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/utils/importlib.py",
line 35, in import_module
import(name)
File "./submodules/fluff-src/fluff/init.py", line 13, in
import fluff.sync_couchdb
File "./submodules/fluff-src/fluff/sync_couchdb.py", line 8, in
from corehq.preindex import PreindexPlugin
File "/home/luki/commcare/corehq/init.py", line 4, in
from corehq.apps.reports.standard import (monitoring, inspect, export,
File
"/home/luki/commcare/corehq/apps/reports/standard/monitoring.py", line
280, in
class SubmissionsByFormReport(WorkerMonitoringReportTableBase,
MultiFormDrilldownMixin, DatespanMixin):
File
"/home/luki/commcare/corehq/apps/reports/standard/monitoring.py", line
293, in SubmissionsByFormReport
description = _("Number of submissions by form.")
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/utils/translation/init.py",
line 71, in ugettext
return _trans.ugettext(message)
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py",
line 276, in ugettext
return do_translate(message, 'ugettext')
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py",
line 258, in do_translate
_default = translation(settings.LANGUAGE_CODE)
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py",
line 172, in translation
default_translation = _fetch(settings.LANGUAGE_CODE)
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py",
line 154, in _fetch
app = import_module(appname)
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/utils/importlib.py",
line 35, in import_module
import(name)
File "/home/luki/commcare/custom/succeed/init.py", line 2, in

from custom.succeed.reports.all_patients import PatientListReport
File "/home/luki/commcare/custom/succeed/reports/init.py", line
36, in
'visit_name': _('CM Initial contact form'),
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/utils/translation/init.py",
line 71, in ugettext
return _trans.ugettext(message)
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py",
line 276, in ugettext
return do_translate(message, 'ugettext')
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py",
line 258, in do_translate
_default = translation(settings.LANGUAGE_CODE)
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py",
line 172, in translation
default_translation = _fetch(settings.LANGUAGE_CODE)
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py",
line 154, in _fetch
app = import_module(appname)
File
"/home/luki/.virtualenvs/commcare-hq/local/lib/python2.7/site-packages/django/utils/importlib.py",
line 35, in import_module
import(name)
File "/home/luki/commcare/custom/m4change/init.py", line 1, in

from custom.m4change.reports import anc_hmis_report,
ld_hmis_report, immunization_hmis_report, all_hmis_report,
File
"/home/luki/commcare/custom/m4change/reports/mcct_monthly_aggregate_report.py",
line 9, in
from custom.m4change.models import McctStatus
File "/home/luki/commcare/custom/m4change/models.py", line 13, in

from corehq.fluff.calculators.xform import FormPropertyFilter
File "/home/luki/commcare/corehq/fluff/calculators/xform.py", line 3,
in
from corehq.fluff.calculators.logic import ORCalculator
File "/home/luki/commcare/corehq/fluff/calculators/logic.py", line 5,
in
class ORCalculator(fluff.Calculator):
AttributeError: 'module' object has no attribute 'Calculator'

Thanks,
Łukasz