Traceback when accessing to Statement view (was Invoice Batch)

[xispa]

Steps to reproduce

1. Be sure you have one Analysis Request created at least
2. Go to Setup > Statements and Add a new one
3. The Statement is created but a Traceback appears when accessing on it

Current behavior

Traceback (innermost last):
  Module ZPublisher.Publish, line 138, in publish
  Module ZPublisher.mapply, line 77, in mapply
  Module ZPublisher.Publish, line 48, in call_object
  Module bika.lims.browser.bika_listing, line 578, in __call__
  Module Products.Five.browser.pagetemplatefile, line 125, in __call__
  Module Products.Five.browser.pagetemplatefile, line 59, in __call__
  Module zope.pagetemplate.pagetemplate, line 132, in pt_render
  Module five.pt.engine, line 98, in __call__
  Module z3c.pt.pagetemplate, line 158, in render
  Module chameleon.zpt.template, line 297, in render
  Module chameleon.template, line 191, in render
  Module chameleon.template, line 171, in render
  Module 7bc87a6cf00fb809870833bf3d328b00.py, line 443, in render
  Module ec3432c014db494cdf6ac1d157ed2259.py, line 1449, in render_master
  Module ec3432c014db494cdf6ac1d157ed2259.py, line 604, in render_content
  Module 7bc87a6cf00fb809870833bf3d328b00.py, line 364, in __fill_content_core
  Module five.pt.expressions, line 161, in __call__
  Module bika.lims.browser.bika_listing, line 1569, in contents_table
  Module bika.lims.browser.bika_listing, line 1747, in __init__
  Module bika.lims.browser.invoicebatch, line 98, in folderitems
AttributeError: getClient

Expected behavior

No traceback is thrown and the invoices are listed.