account_financial_report_webkit error on odoo 7.0

Traceback (most recent call last):
  File "/home/mugo/dev/openerp-git/account-financial-reporting/account_financial_report_webkit/report/webkit_parser_header_fix.py", line 252, in create_single_pdf
    **parser_instance.localcontext)
  File "/usr/lib/python2.7/dist-packages/mako/template.py", line 443, in render
    return runtime._render(self, self.callable_, args, data)
  File "/usr/lib/python2.7/dist-packages/mako/runtime.py", line 783, in _render
    **_kwargs_for_callable(callable_, data))
  File "/usr/lib/python2.7/dist-packages/mako/runtime.py", line 815, in _render_context
    _exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
  File "/usr/lib/python2.7/dist-packages/mako/runtime.py", line 841, in _exec_template
    callable_(context, *args, **kwargs)
  File "memory:0x7f5d188c1ed0", line 38, in render_body
    <%
TypeError: translate_call() takes exactly 2 arguments (3 given)