Got a Python trace when the wrong utterance is used

[goldyfruit]

If the wrong utterance is used such as when was born elon musk then the skill returns a Python trace.

2020-12-12 10:42:13.352 | ERROR    |  8895 | mycroft.skills.mycroft_skill.mycroft_skill:on_error:835 | An error occurred while processing a request in Duck Duck Go Skill
Traceback (most recent call last):
  File "/home/pi/mycroft-core/mycroft/skills/mycroft_skill/event_container.py", line 66, in wrapper
    handler(message)
  File "/home/pi/mycroft-core/mycroft/skills/common_query_skill.py", line 76, in __handle_question_query
    result = self.CQS_match_query_phrase(search_phrase)
  File "/opt/mycroft/skills/skill-ddg.jarbasskills/__init__.py", line 171, in CQS_match_query_phrase
    answer, match, data = self.parse_subintents(utt)
  File "/opt/mycroft/skills/skill-ddg.jarbasskills/__init__.py", line 165, in parse_subintents
    answer = self.translate(answer)
  File "/opt/mycroft/skills/skill-ddg.jarbasskills/__init__.py", line 287, in translate
    translated_utt = utterance.strip()
AttributeError: 'NoneType' object has no attribute 'strip'

[goldyfruit]

Same with a different utterance, Utterance: ['is there any weather alerts']

2020-12-12 12:23:02.495 | ERROR    |  8895 | mycroft.skills.mycroft_skill.mycroft_skill:on_error:835 | An error occurred while processing a request in Duck Duck Go Skill
Traceback (most recent call last):
  File "/home/pi/mycroft-core/mycroft/skills/mycroft_skill/event_container.py", line 66, in wrapper
    handler(message)
  File "/home/pi/mycroft-core/mycroft/skills/common_query_skill.py", line 76, in __handle_question_query
    result = self.CQS_match_query_phrase(search_phrase)
  File "/opt/mycroft/skills/skill-ddg.jarbasskills/__init__.py", line 171, in CQS_match_query_phrase
    answer, match, data = self.parse_subintents(utt)
  File "/opt/mycroft/skills/skill-ddg.jarbasskills/__init__.py", line 165, in parse_subintents
    answer = self.translate(answer)
  File "/opt/mycroft/skills/skill-ddg.jarbasskills/__init__.py", line 287, in translate
    translated_utt = utterance.strip()
AttributeError: 'NoneType' object has no attribute 'strip'

[goldyfruit]

Fixed with c8f2098