Kernrechtsfrage
Whether the appeal could be entered into despite non-payment of the required cost advance.
Extrahierter Entscheid
No. Because the appellant did not pay the court cost advance after being warned, the appeal had to be dismissed without entering into the merits under Article 108 BGG.
Extrahierte Begründung
The Federal Supreme Court had set an initial deadline and a grace period, both with a clear warning that failure to pay would lead to non-entry. Since the advance was not paid, the court applied the threatened consequence.