Questione giuridica chiave
Whether the federal appeal against the cantonal inadmissibility decision was admissible
Decisione estratta
The appeal was inadmissible because it did not sufficiently challenge the cantonal procedural ruling and did not show arbitrariness in the application of cantonal procedure.
Motivazione estratta
Review was limited to the inadmissibility decision based on non-payment of the advance. The appellant failed to raise specific, substantiated grievances as required by Art. 106(2) LTF. Financial difficulties did not establish arbitrariness; any request for legal aid should have been made in the cantonal proceedings.