This is a poorly worded question.
Rasmussen states that there are skill-based, rule-based and knowledge-based
errors.
He then goes on to state that there
are ‘routine’ and ‘exceptional’ violations or intended deviations from the
plan.
In terms of strict terminology answer ”routine errors” is what the examiner is looking for
but answer “handling errors” could be construed to be an acceptable answer and
would be worth an appeal if this question turned up in a UK exam.