What I and others are explaining is this :-
If Magistrates were acting in the administration of Justice (such as hearing a Criminal Prosecution and then convicting the Accused) without a Clerk or other Legal Advisor present, then the procedure was incorrect, and the enforcement of any order or Sentence given by those Magistrates could be challenged.
But, if the absence of the Clerk or Advisor couldn't have made any difference to the outcome (such as hearing a statement of fact where there's no decision to be judged), then it's hard to see that there was any injustice and so there is nothing to be done about it.