Tried the link and got the System Error. Traceback follows:

Traceback (innermost last):
  Module zope.publisher.publish, line 138, in publish
    result = publication.callObject(request, object)
  Module zope.app.publication.zopepublication, line 161, in callObject
    return mapply(ob, request.getPositionalArguments(), request)
  Module zope.publisher.publish, line 113, in mapply
    return debug_call(object, args)
   - __traceback_info__: <security proxied zope.app.pagetemplate.simpleviewclass.SimpleViewClass from /srv/launchpad.net/production/launchpad/lib/canonical/launchpad/templates/pofile-translate.pt instance at 0x2aa0763ad0>
  Module zope.publisher.publish, line 119, in debug_call
    return object(*args)
  Module zope.app.pagetemplate.simpleviewclass, line 45, in __call__
    return self.index(*args, **kw)
  Module zope.app.pagetemplate.viewpagetemplatefile, line 80, in __call__
    return self.im_func(im_self, *args, **kw)
  Module zope.app.pagetemplate.viewpagetemplatefile, line 49, in __call__
    sourceAnnotations=debug_flags.sourceAnnotations)
  Module zope.pagetemplate.pagetemplate, line 120, in pt_render
    strictinsert=0, sourceAnnotations=sourceAnnotations)()
  Module zope.tal.talinterpreter, line 236, in __call__
    self.interpret(self.program)
  Module zope.tal.talinterpreter, line 311, in interpret
    handlers[opcode](self, args)
  Module zope.tal.talinterpreter, line 788, in do_useMacro
    self.interpret(macro)
  Module zope.tal.talinterpreter, line 311, in interpret
    handlers[opcode](self, args)
  Module zope.tal.talinterpreter, line 484, in do_optTag_tal
    self.do_optTag(stuff)
  Module zope.tal.talinterpreter, line 469, in do_optTag
    return self.no_tag(start, program)
  Module zope.tal.talinterpreter, line 464, in no_tag
    self.interpret(program)
  Module zope.tal.talinterpreter, line 311, in interpret
    handlers[opcode](self, args)
  Module zope.tal.talinterpreter, line 813, in do_defineSlot
    self.interpret(slot)
  Module zope.tal.talinterpreter, line 311, in interpret
    handlers[opcode](self, args)
  Module zope.tal.talinterpreter, line 749, in do_condition
    self.interpret(block)
  Module zope.tal.talinterpreter, line 311, in interpret
    handlers[opcode](self, args)
  Module zope.tal.talinterpreter, line 725, in do_loop_tal
    self.interpret(block)
  Module zope.tal.talinterpreter, line 311, in interpret
    handlers[opcode](self, args)
  Module zope.tal.talinterpreter, line 725, in do_loop_tal
    self.interpret(block)
  Module zope.tal.talinterpreter, line 311, in interpret
    handlers[opcode](self, args)
  Module zope.tal.talinterpreter, line 484, in do_optTag_tal
    self.do_optTag(stuff)
  Module zope.tal.talinterpreter, line 469, in do_optTag
    return self.no_tag(start, program)
  Module zope.tal.talinterpreter, line 464, in no_tag
    self.interpret(program)
  Module zope.tal.talinterpreter, line 311, in interpret
    handlers[opcode](self, args)
  Module zope.tal.talinterpreter, line 749, in do_condition
    self.interpret(block)
  Module zope.tal.talinterpreter, line 311, in interpret
    handlers[opcode](self, args)
  Module zope.tal.talinterpreter, line 484, in do_optTag_tal
    self.do_optTag(stuff)
  Module zope.tal.talinterpreter, line 469, in do_optTag
    return self.no_tag(start, program)
  Module zope.tal.talinterpreter, line 464, in no_tag
    self.interpret(program)
  Module zope.tal.talinterpreter, line 311, in interpret
    handlers[opcode](self, args)
  Module zope.tal.talinterpreter, line 748, in do_condition
    if not self.tal or self.engine.evaluateBoolean(condition):
  Module zope.tales.tales, line 703, in evaluateBoolean
    return not not self.evaluate(expr)
  Module zope.tales.tales, line 698, in evaluate
    return expression(self)
   - /srv/launchpad.net/production/launchpad/lib/canonical/launchpad/templates/pofile-translate.pt
   - Line 345, Column 28
   - Expression: <PythonExpr (messageSet.getTranslation(index))>
   - Names:
      {'args': (),
       'context': <POFile at 0x2aa2606590>,
       'default': <object object at 0x2a955c01d0>,
       'loop': {},
       'nothing': None,
       'options': {},
       'repeat': {},
       'request': <zope.publisher.browser.BrowserRequest instance URL=https://launchpad.net/distros/ubuntu/hoary/+sources/update-notifier/+pots/update-notifier/pt_BR/+translate>,
       'template': <zope.app.pagetemplate.viewpagetemplatefile.ViewPageTemplateFile object at 0x2a9edf7210>,
       'usage': <zope.pagetemplate.pagetemplate.TemplateUsage object at 0x6f7e710>,
       'view': <zope.app.pagetemplate.simpleviewclass.SimpleViewClass from /srv/launchpad.net/production/launchpad/lib/canonical/launchpad/templates/pofile-translate.pt object at 0x2aa0763ad0>,
       'views': <zope.app.pagetemplate.viewpagetemplatefile.ViewMapper object at 0x6f7e310>}
  Module zope.tales.pythonexpr, line 59, in __call__
    return eval(self._code, vars)
   - __traceback_info__: (messageSet.getTranslation(index))
  Module <string>, line 0, in ?
  Module canonical.launchpad.browser.pomsgset, line 176, in getTranslation
    return helpers.unix2windows_newlines(translation)
  Module canonical.launchpad.helpers, line 835, in unix2windows_newlines
    raise ValueError('\'%r\' is already converted' % text)
ValueError: 'u'Por favor, entre com sua senha para executar:\r\n %s'' is already converted