When I try to view students' responses for a particular quiz, I get the following error:
Exception - Call to undefined method question_attempt::get_outer_question_div_unique_id()
And the page fails to render correctly.
(This is either by clicking a result via https://suniconnect.sunitafe.edu.au/mod/quiz/report.php?id=x&mode=overview, or https://suniconnect.sunitafe.edu.au/grade/report/grader/index.php?id=x)
What might be the issue?