has the meaning given to that term in Section D5.1.5; where one or more Parties is in default of an obligation to pay a Party Charge (of any type) payable in respect of any period, the “Default Party Charge Share” of each non-Defaulting Party is a proportion determined as the amount payable by the non-Defaulting Party by way of Party Charge of the relevant type in relation to the relevant period, divided by the sum for all non-defaulting Parties of such amounts.