if and to the extent that any claim arising under the Seller’s Warranties shall arise by reason of some liability of which at the time the claim is notified to such ANP is contingent only, such ANP shall not be under any obligation to make any payment thereunder until such time as the contingent liability ceases to be contingent, and upon such contingent liability ceasing to be contingent, such ANP shall immediately pay to IHL the amount of such liability. Nothing herein shall prevent IHL from making a claim or commencing proceedings against ANP in respect thereof or otherwise avoid any such claim at any time within the time limits provided in this Clause 6;