Traceback (most recent call last):
  File "/usr/share/software-center/softwarecenter/ui/gtk3/panes/softwarepane.py", line 531, in on_app_list_changed
    self.search_aid.update_search_help(self.state)
  File "/usr/share/software-center/softwarecenter/ui/gtk3/widgets/searchaid.py", line 242, in update_search_help
    self.on_update_search_help(state)
  File "/usr/share/software-center/softwarecenter/ui/gtk3/widgets/searchaid.py", line 318, in on_update_search_help
    suggestions = self.get_suggestions(term, category, state)
  File "/usr/share/software-center/softwarecenter/ui/gtk3/widgets/searchaid.py", line 164, in get_suggestions
    "Did you mean: %s?") % ref
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc4 in position 5: ordinal not in range(128)