Questão jurídica principal
Whether the appeal was admissible despite non-payment of the court fee advance
Decisão extraída
No. In invalidity insurance cantonal appeal proceedings, an advance of costs is generally required; failure to pay it within the fixed deadline makes the appeal inadmissible.
Fundamentação extraída
The advance was ordered, the deadline expired without payment, and no timely legal-aid request was filed despite the warning in the order.