Questione giuridica chiave
Whether the appeal met the Federal Supreme Court's reasoning requirements under Art. 42 BGG
Decisione estratta
No. The complaint did not address one independent ground of the cantonal judgment, namely the failure to cure the omission by paying the advance after the obstacle ended.
Motivazione estratta
Where the challenged decision rests on multiple independent reasons, each must be specifically contested. Because one decisive ground remained unchallenged, the submission was manifestly insufficient.