Promptly upon written request of the Agent, cure any defects in the execution and delivery of any of the Loan Documents to which the relevant Borrower is a party and all agreements contemplated thereby, and execute, acknowledge and deliver to the Agent such other assurances and instruments as shall, in the reasonable opinion of the Agent, be necessary to fulfill the terms of the Loan Documents to which the relevant Borrower is a party. Any failure by Borrowers to timely perform and comply (or to cause any other Person that is an Affiliate to perform and comply) with any of the covenants and requirements as set forth in this Section 5.15 (as determined by Administrative Agent, in its sole but reasonable discretion) shall constitute an Event of Default under Section 7.1(c) of the Credit Agreement.