Questão jurídica principal
Whether the appeal had to be admitted despite non-payment of the court cost advance.
Decisão extraída
No. Because the requested advance on costs was not paid within the deadline, the appeal could not be heard.
Fundamentação extraída
Under the applicable social insurance and cantonal procedural rules, the court may require an advance on costs and warn that failure to pay leads to non-entry; the appellant did not comply or respond to the court's request.