Questione giuridica chiave
Whether the late payment was excused by psychiatric illness and justified reinstatement in time.
Decisione estratta
The illness was not shown to have made timely action impossible; reinstatement was denied.
Motivazione estratta
A medical condition excuses a missed deadline only if it prevents the party from acting in time or from instructing a third person. The canton court’s finding that the medical report did not prove such incapacity was not arbitrary.