tokens: Upon the occurrence of an event of default under Article 18 . 1 hereof , at the option and upon the declaration of the Lender , the entire unpaid principal and accrued and unpaid interest on the Loan shall without formal notice of default ( mise en demeure ) or any other judicial or extra - judicial step ,, be forthwith due and payable , and the Lender may , immediately and without expiration of any period of grace , enforce payment of all amounts due and owing under this Loan Agreement and exercise any and all other remedies granted to it .