definiens: means : 121.64.1 any default by any Party hereto of its representations, warranties, covenants, agreements or otherperformance obligations under this Agreement ( other than a payment obligation ) that is ( a ) material to this Agreement, taken as a whole, and ( b ) shall have continued for * * after notice thereof was provided to the alleged defaulting Partyby the non - defaulting Party ( or, if such default can not be cured within such * * period, if the alleged defaulting Partydoes not promptly commence and diligently continue all reasonable actions to cure such defaults during such * * period, or does not materially cure such default within * * after notice thereof was provided to the alleged defaultingParty ) ; or1.64.2 any default by any Party hereto of its payment obligations hereunder that shall have continued for * * after notice thereof was provided to the alleged defaulting Party by the non - defaulting Party ; provided that, in theevent of a good faith payment dispute, such * * cure period shall be extended for an additional * * to resolve suchdispute if the alleged defaulting Party has paid all undisputed amounts when due and provided the non - defaultingParty with a reasonably detailed written explanation of the alleged defaulting Party ’s basis for disputing the paymentobligation within the * * period following the notice of the default by the non - defaulting Party . The alleged defaultingParty shall pay interest on the final adjudicated amount due pursuant to Section 7.13 from the date that such paymentwas originally due