Error:
Odoo Server Error

Traceback (most recent call last):
  File "/home/sbu/odoo/odoo/addons/base/models/ir_http.py", line 229, in _dispatch
    result = request.dispatch()
  File "/home/sbu/odoo/odoo/http.py", line 675, in dispatch
    result = self._call_function(**self.params)
  File "/home/sbu/odoo/odoo/http.py", line 353, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/home/sbu/odoo/odoo/service/model.py", line 93, in wrapper
    return f(dbname, *args, **kwargs)
  File "/home/sbu/odoo/odoo/http.py", line 346, in checked_call
    result = self.endpoint(*a, **kw)
  File "/home/sbu/odoo/odoo/http.py", line 919, in __call__
    return self.method(*args, **kw)
  File "/home/sbu/odoo/odoo/http.py", line 523, in response_wrap
    response = f(*args, **kw)
  File "/home/sbu/odoo/addons/survey/controllers/main.py", line 511, in survey_submit
    return self._prepare_question_html(survey_sudo, answer_sudo)
  File "/home/sbu/odoo/addons/survey/controllers/main.py", line 338, in _prepare_question_html
    return request.env.ref('survey.survey_fill_form_in_progress').render(data)
  File "/home/sbu/odoo/addons/web_editor/models/ir_ui_view.py", line 26, in render
    return super(IrUiView, self).render(values=values, engine=engine, minimal_qcontext=minimal_qcontext)
  File "/home/sbu/odoo/odoo/addons/base/models/ir_ui_view.py", line 1588, in render
    return self.env[engine].render(self.id, qcontext)
  File "/home/sbu/odoo/odoo/addons/base/models/ir_qweb.py", line 58, in render
    result = super(IrQWeb, self).render(id_or_xml_id, values=values, **context)
  File "/home/sbu/odoo/odoo/addons/base/models/qweb.py", line 260, in render
    self.compile(template, options)(self, body.append, values or {})
  File "/home/sbu/odoo/odoo/addons/base/models/qweb.py", line 334, in _compiled_fn
    raise e
  File "/home/sbu/odoo/odoo/addons/base/models/qweb.py", line 332, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_survey_survey_fill_form_in_progress_296
  File "<template>", line 20, in foreach_281
  File "/home/sbu/odoo/odoo/addons/base/models/qweb.py", line 339, in _compiled_fn
    raise QWebException("Error to render compiling AST", e, path, node and etree.tostring(node[0], encoding='unicode'), name)
Exception

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/sbu/odoo/odoo/http.py", line 631, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/home/sbu/odoo/odoo/http.py", line 317, in _handle_exception
    raise exception.with_traceback(None) from new_cause
odoo.addons.base.models.qweb.QWebException: 66
Traceback (most recent call last):
  File "/home/sbu/odoo/odoo/addons/base/models/qweb.py", line 332, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_survey_question_container_323
KeyError: 66

Error to render compiling AST
KeyError: 66
Template: survey.question_container
Path: /t/t[1]
Node: <t t-set="display_question" t-value="survey.questions_layout == 'page_per_question'                     or (survey.questions_layout == 'one_page' and not question.is_conditional)                     or (survey.questions_layout == 'page_per_section' and (not question.is_conditional or hierarchy_map[question.id] in selected_answers))"/>