[plonegov-br] Erro collective.signupsheet

[Pedro Muniz]

Prezados (as) Bom dia, estou implementando portal Plone 4.3 ao instalar o produto collective.signupsheet, esta ocorrendo o seguinte erro: Se alguém ja passou por esse erro poderia me ajudar, desde já agradeço à atençãoTraceback (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 Products.CMFPlone.FactoryTool, line 478, in __call__
  Module ZPublisher.mapply, line 77, in mapply
  Module ZPublisher.Publish, line 48, in call_object
  Module Products.CMFFormController.FSControllerPageTemplate, line 91, in __call__
  Module Products.CMFFormController.BaseControllerPageTemplate, line 31, in _call
  Module Shared.DC.Scripts.Bindings, line 322, in __call__
  Module Shared.DC.Scripts.Bindings, line 359, in _bindAndExec
  Module Products.CMFCore.FSPageTemplate, line 237, in _exec
  Module Products.CMFCore.FSPageTemplate, line 177, in pt_render
  Module Products.PageTemplates.PageTemplate, line 79, in pt_render
  Module zope.pagetemplate.pagetemplate, line 132, in pt_render
  Module five.pt.engine, line 93, in __call__
  Module z3c.pt.pagetemplate, line 163, in render
  Module chameleon.zpt.template, line 258, in render
  Module chameleon.template, line 188, in render
  Module chameleon.template, line 170, in render
  Module 36f110593d2b9297320d10dba9f8a5a0.py, line 1143, in render
  Module 36f110593d2b9297320d10dba9f8a5a0.py, line 964, in render_master
  Module 429135c8b96e24f183822e33f3fec1fc.py, line 1392, in render_master
  Module 429135c8b96e24f183822e33f3fec1fc.py, line 612, in render_content
  Module 36f110593d2b9297320d10dba9f8a5a0.py, line 952, in __fill_main
  Module 36f110593d2b9297320d10dba9f8a5a0.py, line 122, in render_main
  Module c6ebe8d66ab4ea35b28c8de16812f994.py, line 453, in render_body
  Module e7c890c7f8e4d4c814b1ea1744fc0af8.py, line 1182, in render_edit
  Module d7aa25dde396322c16851a3036d78bce.py, line 655, in render_edit
  Module e7c890c7f8e4d4c814b1ea1744fc0af8.py, line 139, in __fill_widget_body
  Module Products.CMFCore.FSPythonScript, line 127, in __call__
  Module Shared.DC.Scripts.Bindings, line 322, in __call__
  Module Shared.DC.Scripts.Bindings, line 359, in _bindAndExec
  Module Products.PythonScripts.PythonScript, line 344, in _exec
  Module script, line 21, in collectKeywords
   - <FSPythonScript at /planejamento/portal_factory/SignupSheet/signupsheet.2016-03-17.8364264484/collectKeywords>
   - Line 21
  Module Products.Archetypes.utils, line 400, in sortedByValue
  Module Products.Archetypes.utils, line 398, in _cmp
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 6: ordinal not in range(128)

 - Stream:     Ministério dos Transportes
                     ^
 - Expression: "python: context.collectKeywords(fieldName, field.accessor, widget.vocab_source)"
 - Filename:   ... /Products/Archetypes/skins/archetypes/widgets/keyword.pt
 - Location:   (line 30: col 39)
 - Source:     ... python: context.collectKeywords(fieldName, field.accessor, widget.vocab_source) ...
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 - Arguments:  repeat: {...} (0)
               template: <ImplicitAcquisitionWrapper base_edit at 0x7f16112fe500>
               modules: <instance - at 0x7f162b6fb638>
               here: <ImplicitAcquisitionWrapper signupsheet.2016-03-17.8364264484 at 0x7f161130baa0>
               user: <ImplicitAcquisitionWrapper - at 0x7f16113125a0>
               nothing: <NoneType - at 0x7b4050>
               container: <ImplicitAcquisitionWrapper signupsheet.2016-03-17.8364264484 at 0x7f161130baa0>
               default: <object - at 0x7f163e0c5bc0>
               request: <instance - at 0x7f1611870cb0>
               wrapped_repeat: <SafeMapping - at 0x7f16117cef70>
               traverse_subpath: <list - at 0x7f1611301b90>
               loop: {...} (9)
               context: <ImplicitAcquisitionWrapper signupsheet.2016-03-17.8364264484 at 0x7f161130baa0>
               translate: <function translate at 0x7f161170b7d0>
               root: <ImplicitAcquisitionWrapper Zope at 0x7f1611ab56e0>
               options: {...} (2)
               target_language: <NoneType - at 0x7b4050> 		 	   		  
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