Kernrechtsfrage
Whether the deadline for filing opposition should be reinstated under Art. 33(4) SchKG due to an impediment beyond fault.
Extrahierter Entscheid
The complaint could not succeed because the appellant did not show that the cantonal findings on the absence of an excusable impediment were based on any breach of federal evidentiary rules or on obvious error.
Extrahierte Begründung
The Federal Supreme Court is bound by the cantonal factual findings absent a proven federal-law evidentiary violation or obvious mistake. New factual allegations and evidence were inadmissible. On the established facts, the company did not demonstrate a legally relevant impediment; the arguments merely contested the lower courts' appraisal of the medical certificate and facts.